Gwen Stefani strikes a pose at the world premiere of Paul McCartney‘s "My Valentine" music video on Friday (April 13) in West Hollywood, Calif.

The 42-year-old rocker was just one of many in attendance at the event which was hosted by Paul and his daughter, designer Stella McCartney.

PHOTOS: Check out the latest pics of Gwen Stefani

Also hitting up the party were Gwyneth Paltrow, Kristen Stewart, Miranda Kerr, Reese Witherspoon, Zooey Deschanel, and more.

Have you checked out the “My Valentine” video yet? It features Natalie Portman and Johnny Depp!

10+ pictures inside of Gwen Stefani at the premiere of "My Valentine"…

Rumer Willis and Zooey Deschanel arrive in style at the world premiere of the "My Valentine" video on Friday (April 13) in West Hollywood, Calif.

The 23-year-old entertainer, in Stella McCartney, and Zooey, 32, also in Stella McCartney, were joined at Paul McCartney‘s video premiere by Ginnifer Goodwin and her Once Upon A Time co-star Josh Dallas.

"@joshdallas: Just met Paul McCartney! EPIC." I will tell the story til I’m 108. And, truly, my new favorite song is #MyValentine” Ginnifer and Josh tweeted at each other.

Check out the video in case you missed it!

Also pictured inside: Rumer attending a benefit for The New York Rescue Workers and Gulf Coast Detoxification Projects at Fig & Olive Melrose Place on Wednesday (April 12) in West Hollywood. She was joined at the event by Bijou Phillips and Danny Masterson.

15+ pictures inside of Rumer Willis, Zooey Deschanel, and Ginnifer Goodwin at the premiere of “My Valentine”…

Johnny Depp and Natalie Portman communicate through sign language in the video premiere for Paul McCartney‘s “My Valentine”.

The duo use only sign language throughout the song, while Paul‘s singing voice dubs over. Paul‘s daughter, designer Stella McCartney, designed the visuals for the black and white vid.

“Someday soon, sun was gonna shine,” Johnny signs in the song. “She was right, this love of mine, my valentine.”

On Friday night (April 13), Paul and Stella premiered the video at a star-studded bash with Kristen Stewart, Gwyneth Paltrow, Miranda Kerr, Reese Witherspoon, and more!

WHAT DO YOU THINK of Natalie Portman and Johnny Depp in the video for “My Valentine”?

Reese Witherspoon is positively glowing at the world premiere of the "My Valentine" video on Friday (April 13) in West Hollywood, Calif.

The 36-year-old pregnant actress was joined by numerous other familiar faces at Paul McCartney‘s big music video debut. Paul hosted the affair, along with his daughter, designer Stella McCartney.

PHOTOS: Check out the latest pics of Reese Witherspoon

It was recently announced that Reese will be a guest at the White House Correspondents’ Association dinner. The annual reception, which raises money for journalism scholarships, will be held on April 28.

Miranda Kerr helps celebrate the world premiere of the "My Valentine" video on Friday (April 13) in West Hollywood, Calif.

The 28-year-old model attended the music video premiere hosted by Paul McCartney and his daughter Stella. Paul‘s video features Natalie Portman and Johnny Depp!

PHOTOS: Check out the latest pics of Miranda Kerr

Miranda recently got an excellent endorsement for her book, “Treasure Yourself”.

“Ellen DeGeneres highly recommends my book Treasure Yourself. Check out the video here Lots of love, Miranda xxx” she tweeted.

10+ pictures inside of Miranda Kerr at the video premiere for “My Valentine”…

Gwyneth Paltrow flashes a smile at the world premiere of the "My Valentine" video on Friday (April 13) in West Hollywood, Calif.

The 39-year-old actress attended the premiere of Paul McCartney's music video release, which was hosted by the Beatles member as well as his daughter, designer Stella McCartney!

PHOTOS: Check out the latest pics of Gwyneth Paltrow

Also in attendance at the star studded music video release party were Kristen Stewart, Reese Witherspoon, Miranda Kerr, Zooey Deschanel, and more!

10+ pictures inside of Gwyneth Paltrow at the premiere of “My Valentine”…

Kristen Stewart rocks a Stella McCartney skirt and blazer at the world premiere of the “My Valentine” video on Friday (April 13) in West Hollywood, Calif.

The 22-year-old Twilight actress attended Paul McCartney‘s music video release hosted by the Beatles member himself, as well as his daughter, designer Stella McCartney.

PHOTOS: Check out the latest pics of Kristen Stewart

Earlier this week, Kristen celebrated her birthday! As a special treat, three of her Snow White and the Huntsman co-stars, Charlize Theron, Chris Hemsworth, and Sam Claflin, left her personal YouTube messages – check them out in case you missed them.

10+ pictures inside of Kristen Stewart at the music video premiere of “My Valentine”…

Kings of Leon rocker Jared Followill puts the squeeze on his girlfriend, model Martha Patterson in the VIP section of the 2012 Coachella Music Festival on Friday (April 13) in Indio, Calif.

The happy twosome was accompanied by entrepreneur Douglas Chabbot and another cute couple, supermodel Karlie Kloss and St. Louis Rams Quarterback Sam Bradford. (Rams Wide Receiver Danny Amendola was also in attendance!)

“It was frigid outside,” a concertgoer tells JustJared.com. “But everyone was having a great time chowing down on pizza and burgers. When the Black Keys and Swedish House Mafia performed, both couples really let loose and started dancing.”

Jared Leto was also spotted out and about at Coachella – pictured below!

FYI: Last year, the Kings of Leon headlined the festival!

15+ pictures inside of Jared Followill and Karlie Kloss with their Coachella couples…

Vanessa Hudgens and boyfriend Austin Butler show some PDA at the 2012 Coachella Music Festival on Friday (April 13) in Indio, Calif.

The cute couple shared a kiss during day one of the event.

Vanessa recently wrapped up her new film, Spring Breakers, which co-stars James Franco, Selana Gomez and Ashley Benson.

"I think at the end of the day you have to do parts that you could semi-relate to,” Vanessa told E! News. “I’m certainly not one who is going to rob a bank, but there is a part of me that loves smashing things and I get to do that [in this film].”

Lily Collins strikes a pose in the VIP section of the 2012 Coachella Music Festival on Friday (April 13) in Indio, Calif.

The 23-year-old actress has been busy in North Carolina the last few weeks shooting her new indie movie, Writers. The film follows a literary celebrity (Greg Kinnear) who is still hung up on his ex-wife (Jennifer Connelly). Lily stars as their daughter, who is lusted after by her aspiring-writer schoolmate (Logan Lerman). Nat Wolff, Kristen Bell, and Patrick Schwarzenegger co-star.

Lily, who later hit up the Mulberry party, caught The Black Keys performance (as did Gossip Girl‘s Jessica Szohr). Aussie actress Teresa Palmer danced around as Swedish House Mafia got the crowd going. Even Paul McCartney was spotted bouncing along!

Check out two more stills of Colin Farrell in his upcoming action flick Total Recall via EW‘s Summer Movie Preview

"One of the main things that's different in this version is a vulnerability that I really wanted the character of Doug Quaid to have. Colin got himself in wicked shape for this film but I didn't want the focus to be 'Who's going to be the next Arnold [Schwarzenegger] replacement?’” director Len Wiseman told Total Film.

"When it first surfaced, every WWF wrestler was linked to it,” he added, “and that was the opposite direction of the way I wanted to go."

Also pictured: Colin leaving a gym with a buddy on Wednesday (April 11) in Philadelphia, Penn., where he’s been filming his other movie Dead Man Down.

15+ pictures inside of Colin Farrell‘s Total Recall stills and him at the gym…

Kate Bosworth and her boyfriend Michael Polish are all smiles at the 2012 Coachella Music Festival on Friday (April 13) in Indio, Calif.

The happy couple enjoyed the musical acts while walking around with their arms wrapped around each other.

This month, Kate‘s on the cover of Company magazine's May 2012 issue, as well as inside the mag for her amazing style trends!

She recently shared her ultimate Coachella playlist with Refinery29.com, which included “Polish Girl” by Neon Indian.

“I love their intense rhythm, and hypnotic electronic sounds,” Kate said. “Can’t wait to see this band live.”

Kate Mara and her beau Max Minghella walk hand in hand down a busy New York City street on Thursday (April 12).

The 29-year-old American Horror Story actress and her 26-year-old boyfriend grabbed some warm coffee as they spent their chilly Big Apple afternoon together.

The DVD and Blu-ray for Max‘s recent film The Darkest Hour was just released! The sci-fi action flick also stars Emile Hirsch, Olivia Thirlby, and Joel Kinnaman. Be sure to pick up your copy today!

10+ pictures inside of Kate Mara and Max Minghella enjoying their afternoon together in New York City…

Avril Lavigne links arms with two gal pals while leaving Chateau Marmont on Wednesday (April 11) in Los Angeles.

Last month, the 27-year-old pop star visited her Avril Lavigne Rockstar Club at Easter Seals in southern California where she danced and sang karaoke with kids participating in the program.

“Dear Avril, I just want to thank you for your commitment to helping children with disabilities and your work with Easter Seals. The Easter Seals program has been vital for my son to have after-care once school is over,” one mom named Corky wrote to Avril.

“My son, Timmy is nonverbal and has autism. Since 6 [months old] he has always responded to music,” she added. “He can read and is absolutely mesmerized and motivated by the karaoke machine. Thank you again for improving the quality of my son's and all of the children's experience at Easter Seals.”

Joe Jonas rides a bike with a buddy on Wednesday (April 11) in New York City.

The 22-year-old singer stopped at Union Square and checked out a protest in support of Trayvon Martin, the unarmed Florida teen shot to death by community watch coordinator George Zimmerman.

PHOTOS: Check out the latest pics of Joe Jonas

“Yo body it’s me. Get tired. Time to sleep,” Joe tweeted the night before, later adding, “Yo body. It’s me. Wake up! Let’s do this.”

On Tuesday, Joe was spotted taking a stroll with his rumored new girlfriend.

Zoe Saldana picks up lunch on her way to a studio in Los Angeles on Wednesday (April 11).

The 33-year-old actress, who’s been busy working on the Star Trek sequel, has also joined the star-studded cast of the upcoming thriller tentatively titled Out of the Furnace. Zoe will be starring alongside Christian Bale, Casey Affleck, Sam Shepard, Woody Harrelson, and Forest Whitaker.

PHOTOS: Check out the latest pics of Zoe Saldana

The new film recently began principal photography and will be directed by critically-acclaimed Crazy Heart director Scott Cooper!

Olivia Wilde gets ready to catch a flight at LAX Airport on Wednesday (April 11) in Los Angeles.

The 28-year-old actress is sporting blonde hair while she works on her latest film, Rush, with Chris Hemsworth.

Over the weekend, Olivia was in NYC where she hit the Saturday Night Live after party with boyfriend and SNL cast member Jason Sudeikis.

Other couples at the bash held at Greek restaurant Loi included Andrew Garfield and Emma Stone, as well as SNL host Sofia Vergara with beau Nick Loeb, according to the NY Post.

10+ pictures inside of Olivia Wilde at LAX…

Emile Hirsch and Anton Yelchin attend Bullett Magazine‘s “Spring Fling” held at Dilettante on Wednesday (April 11) in Los Angeles.

The event featured a silent auction of original photography by Anton to benefit The Trevor Project, the nation’s leading organization for LGBT youth.

Partygoers also came out to help celebrate the release of Bullett‘s The Obsessed Issue- Volume VI.

Emile‘s latest movie, The Darkest Hour, is now available on DVD.

The action flick, co-starring Olivia Thirlby, centers around a trio of American pals in Moscow who find their traveling plans rudely interrupted by energy-based alien invaders.

Joseph Gordon-Levitt shoots a man down in the teaser trailer for his upcoming flick Looper.

Here’s the synopsis: In the futuristic action thriller Looper, time travel will be invented – but it will be illegal and only available on the black market. When the mob wants to get rid of someone, they will send their target 30 years into the past, where a “looper” – a hired gun, like Joe (Gordon-Levitt) – is waiting to mop up. Joe is getting rich and life is good… until the day the mob decides to “close the loop,” sending back Joe’s future self (Bruce Willis) for assassination.

Catch Looper when it hits theaters on September 28th!

Zac Efron and Taylor Schilling separately arrive at LAX Airport on Friday (April 13) in Los Angeles.

The Lucky One co-stars flew in from Australia where they had been busy promoting their new romantic movie.

“I didn’t feel like I was the type of guy to actually portray [a Marine] accurately. There was a lot I’d have to learn,” Zac told Men’s Health‘s May issue about playing a serviceman in the film.

To prepare for the role, Zac met with real-life Marines who “were my age – 23, 24, even younger.”

“Most of the staff sergeants were not huge guys. They were about my height, 5’9″, 5’10″, some shorter, but all very stocky,” he added. “And I'm there in a backward hat and Vans, walking around like I'm still in college."

10+ pictures inside of Zac Efron and Taylor Schilling at LAX Airport…

A makeup-free Kate Walsh catches a flight at LAX Airport on Wednesday (April 11) in Los Angeles.

“Tw’eeps, I bid u adieu…on petit vaca por moi. But I will tweet u lively for ppp on ye olde 17th from an exotic locale! Occasional pics too,” the 44-year-old Private Practice actress wrote on her Twitter page.

PHOTOS: Check out the latest pics of Kate Walsh

Earlier in the day, Kate told her Twitter followers she had finished working on the ABC drama’s latest episodes.

“Last day of shooting season 5 for me! Woohoo!” she wrote.

Elizabeth Olsen flashes a smile in front of Madewell‘s Airstream van on Thursday (April 12) in NYC.

The 23-year-old actress helped kick off the 14-city “Madewell Denim Road Trip,” which features stylists on hand to help pick out the style that’s right for you, as well as a “braid bar” where you can get your hair done.

As an added bonus, there will also be a Denim Dash scavenger hunt where fans can score free jean cards or enter a sweepstakes to win five years of free denim!

For more info on all of the Road Trip stops, check out Madewell‘s Facebook page!

LeAnn Rimes meets up with hubby Eddie Cibrian at the 2012 Toyota Grand Prix of Long Beach on Friday (April 13) in Long Beach, Calif.

The 29-year-old singer came out to support Eddie, 38, at People‘s presentation of the “People Pole Award.”

“These celebrity types ain’t so bad at this racing thing!!! #TPCR,” LeAnn tweeted.

“It’s raining sideways in Long Beach! Wow, hopefully it let’s up before the qualifying race!!!!” she wrote in another tweet. “Love watching [Eddie] race! I’m a proud wife!!!!”

Earlier this week, LeAnn laughed off reports she was writing a tell-all book.

Penelope Cruz strikes a pose in Dolce&Gabbana at the To Rome with Love premiere on Friday (April 13) at Auditorium Parco della Musica in Rome, Italy.

The 37-year-old actress joined co-stars Jesse Eisenberg, Roberto Benigni, Alec Baldwin and director Woody Allen at the red carpet event just a few hours after they appeared at the film’s photo call.

“Maybe I'll make one movie a year, maybe two, but it's not going to be more than that because I have other priorities now,” Penelope told Harper’s Bazaar‘s May issue about juggling her career and motherhood.

FYI: Penelope accessorized with a Roger Vivier clutch and Chopard jewelry.