Nicki Minaj hits the stage during American Idol's live elimination show on Thursday (March 29) in Los Angeles.

The 29-year-old rapper performed her latest hit single, “Starships,” off her new album Pink Friday: Roman Reloaded, available in stores Tuesday (April 3).

PHOTOS: Check out the latest pics of Nicki Minaj

Nicki will be singing copies of the album the day of its release at Best Buy in the Harlem neighborhood of New York, as well as performing on the Today show on April 6!

Katherine Heigl and Josh Kelley snuggle up during lunch on Wednesday (March 28) in Los Angeles.

The 33-year-old One For The Money actress and her husband stopped at Little Dom’s for a bite to eat.

PHOTOS: Check out the latest pics of Katherine Heigl

Earlier in the day, Katherine was spotted out and about with her momager, Nancy.

Katherine was busy over the weekend — she browsed fabrics with her mom and later bought a sewing machine!

10+ pictures inside of Katherine Heigl and Josh Kelley out on a lunch date…

Christina Aguilera and her boyfriend Matthew Rutler flash a smile at Staples Center on Thursday (March 29) in Los Angeles.

The 31-year-old entertainer and The Voice coach sat courtside with Matt as the Los Angeles Lakers took on the Oklahoma City Thunder.

PHOTOS: Check out the latest pics of Christina Aguilera

Christina was later joined by The Voice social media correspondent, Christina Milian, and shared a few laughs.

“@TheRealXtina fans.. I saw your girl at the game tonight and hung out courtside and had a good time at the #Lakers game,” Christina M. wrote on her Twitter account. “We’re ready 4 Live.”

Kellan Lutz and his girlfriend Sharni Vinson are all smiles at Sydney Airport on Thursday (March 29) in Sydney, Australia.

The 27-year-old Twilight star and Sharni, 28, landed at the airport and were spotted laughing and holding hands as they made their way towards the exit.

PHOTOS: Check out the latest pics of Kellan Lutz

“And Im back! Missed being here in Australia. Can't wait for the grand opening of @MarqueeSydney tonight at @TheStarSydney. It's going to be one hell of a party! #MarqueeSydney" Kellan wrote on his WhoSay page.

Taylor Kitsch is all smiles as he arrives back to his hotel on Wednesday (March 28) in London, England.

The 30-year-old actor, who is in town to do press for his upcoming movie Battleship, was accompanied by a group of friends as they returned from having dinner.

PHOTOS: Check out the latest pics of Taylor Kitsch

Taylor recently shared he had “absolutely no regrets” about his first big screen starring role as John Carter.

“I would do John Carter again tomorrow,” Taylor expressed. “I'm very proud of John Carter. Box office doesn't validate me as a person, or as an actor.”

10+ pictures inside of Taylor Kitsch arriving at his hotel in London…

Maggie Gyllenhaal heads out with some garments over her shoulder on a sunny Thursday (March 29) in Brooklyn, NY.

The 34-year-old pregnant actress then headed to the borough of Manhattan for a meeting.

Maggie recently confirmed she is having a second baby girl, USA Today reports.

“I find it difficult to pretend you’re not pregnant, which I had to do,” Maggie recently said about hiding her pregnancy before she announced it to the press. “I didn’t let anyone know until three and a half months this time. I went to film festivals. I’m throwing up in the bathroom and having to keep pretzels in my purse, and having to fit into dresses.”

Rooney Mara grabs her clothes from a local dry cleaner on Thursday (March 29) in Los Angeles.

After picking up her dry cleaning, the 26-year-old The Girl with the Dragon Tattoo actress filled up her car with gas before heading on a road trip with some pals.

PHOTOS: Check out the latest pics of Rooney Mara

Rooney recently returned from Texas, where she was filming the latest Terrence Malick film Lawless at the SXSW festival.

Have you picked up your copy of Dragon Tattoo yet? It was released on DVD and Blu-ray last week!

Kristin Chenoweth steps out of the gym on Wednesday (March 28) in Beverly Hills, Calif.

The GCB actress was joined by her trainer as they took a quick break to grab some lunch.

PHOTOS: Check out the latest pics of Kristin Chenoweth

“Goodnight everyone in Twitterville,” Kristin wrote on her Twitter account. “Before I shut my eyes, I want everyone to know I Tivo-n Kimmel bc Kevin Durant is on tonight.”

Earlier this week, Kristin made an appearance on Conan with Hunger Games actor Liam Hemsworth.

Ryan Phillippe and daughter Ava grab a bite to eat on a sunny Wednesday (March 28) in Los Angeles.

The 37-year-old actor took his daughter, 12, to Hugo restaurant for lunch and some daddy-daughter bonding time!

PHOTOS: Check out the latest pics of Ryan Phillippe

Over the weekend, Ryan was spotted out with his son Deacon. The pair went to Petco to grab some supplies for their pet cat.

Ryan is set to return to the small screen on an episode of Damages this summer alongside Glenn Close and Rose Byrne.

January Jones keeps it cute and casual in a polka dotted sweater as she leaves lunch on Wednesday (March 28) in Los Feliz, Calif.

The 34-year-old Mad Men actress tried to keep a low profile behind dark sunglasses but couldn’t hide her smile!

PHOTOS: Check out the latest pics of January Jones

Earlier in the week, January was spotted leaving New York with her adorable son Xander.

Over the weekend, Mad Men aired its first episode in 18 months. The premiere was record-breaking -– 3.5 million viewers tuned in!

Check out the trailer for Jennifer Lawrence‘s newest movie, The House at the End of the Street.

In the thriller, the 21-year-old actress plays a teen who moves into a house next to the site of a double homicide.

PHOTOS: Check out the latest pics of Jennifer Lawrence

“She strikes up a friendship with the surviving son, played by Max Thieriot, which leads to all sorts of complications of the deadly variety,” THR adds.

The House at the End of the Street will hit theaters in September.

Kelly Clarkson works up a sweat at the gym on Thursday (March 29) in Los Angeles.

The 29-year-old singer brought along her pups for her rigorous workout!

PHOTOS: Check out the latest pics of Kelly Clarkson

It was recently rumored that Kelly may have a new man in her life: Reba McEntire‘s stepson, Nashville based talent manager Brandon Blackstock!

This summer, Kelly‘s singing competition series Duets will debut on ABC. The show focuses on finding new duet partners for the stars!

Jennifer Nettles, Lionel Richie and Robin Thicke will also be searching for duet pairings on the show.

Rosie Huntington-Whiteley rocks some tight work out attire as she leaves her gym on Thursday (March 29) in West Hollywood, Calif.

The 24-year-old model and actress wore a New York Yankees baseball cap to keep the sun out of her eyes.

PHOTOS: Check out the latest pics of Rosie Huntington-Whiteley

Have you seen Rosie‘s April 2012 cover of Vogue Brazil yet? She looks absolutely stunning – be sure to check it out!

10+ pictures inside of Rosie Huntington-Whiteley rocking a New York Yankees baseball cap while leaving the gym…

Reese Witherspoon heads out of an office building while running errands on a busy Thursday (March 29) in Los Angeles.

The 35-year-old actress is currently rumored to be pregnant with her third child. Reese and her hubby Jim Toth married last year!

PHOTOS: Check out the latest pics of Reese Witherspoon

It was recently announced that Reese will be producing Pennyroyal's Princess Boot Camp, a princess children’s story. She is also attached to a supporting role in the flick.

10+ pictures inside of Reese Witherspoon leaving an office building…

Halle Berry shows off her Gurhan green engagement ring while visiting a friend on Thursday (March 29) in Studio City, Calif.

The 45-year-old actress was spotted without her leg cast! We hope your leg is feeling better, Halle!

PHOTOS: Check out the latest pics of Halle Berry

Halle recently returned from a trip to France, where she was vacationing with fiance Olivier Martinez.

It was also recently announced that Halle will be starring in The Hive, a thriller about a 911 operator who tries to save a teenage girl.

Jennifer Garner chats away on her cell phone as she walks down the sidewalk on Thursday (March 29) in Pacific Palisades, Calif.

The 39-year-old actress stepped out with wet hair tied back in a pony tail!

PHOTOS: Check out the latest pics of Jennifer Garner

Jen has been seen out and about more recently since giving birth to her newborn son Samuel last month. She was spotted getting a manicure and pedicure earlier in the week, and last week, took her cutie pie daughter Seraphina to the doctors.

10+ pictures inside of Jennifer Garner chatting on her cell…

Check out the video premiere of Dev‘s latest single “Naked” featuring Enrique Iglesias!

The 22-year-old singer teamed up with director BBGun, who shot Enrique‘s video for “Tonight (I’m Lovin’ You)“, to shoot the video in Las Vegas.

PHOTOS: Check out the latest pics of Enrique Iglesias

“Naked” serves as the third official single from Dev‘s debut album, The Night The Sun Came Up, which is available in stores now.

WHAT DO YOU THINK of Dev and Enrique Iglesias’ video for “Naked”?

FYI: Dev is wearing Grey Ant “The Foundry” sunglasses.

Minka Kelly and Wilmer Valderamma arrive at the airport on Friday (March 30) in Sydney, Australia.

While there has been much speculation that the two are dating, there is no truth to this rumor!

PHOTOS: Check out the latest pics of Minka Kelly

Sources exclusively tell JustJared.com that they are “definitely not a couple.” They just have a lot of mutual friends and hang in the same social circles.

Minka was last romantically linked to New York Yankees player Derek Jeter, while Wilmer recently dated Demi Lovato.

Dakota Fanning takes a walk to grab dinner with friends on Tuesday (March 27) in New York City.

Multiple news outlets are reporting that the 18-year-old actress lost out to Chloe Moretz for the leading role in a remake of the classic horror film Carrie – but it’s not true!

PHOTOS: Check out the latest pics of Dakota Fanning

Sources tell JustJared.com that Dakota passed on the role and never even auditioned for the movie.

Dakota is currently fielding other movie offers and may go back to school in the fall.

Leighton Meester shows support for the fight against blood cancer in this new PSA for DKMS Americas, the world’s largest bone marrow donor center.

The 25-year-old Gossip Girl actress teamed up with Kerri Mullen, the 19-year-old blood cancer survivor who inspired the campaign, for the PSA.

Leighton is also teaming up with Vera Wang – consumers will get a free “Share the Love” tee designed by Vera for DKMS, when they make a $78 purchase from the Vera Wang Lovestruck fragrance collection. Leight is the face of the fragrance!

Learn more about becoming a donor at GetSwabbed.org!

Check out this new picture of James Franco in character on the set of Spring Breakers, rocking a pair of shiny grillz on his teeth!

In the new picture, posted on Tumblr, James can be seen as the threatening gangster. The film also stars Selena Gomez, Vanessa Hudgens, and Ashley Benson.

Also pictured inside: Selena, Ashley, and Vanessa in their bikinis posing for a pic with gangsta James.

In case you missed it, check out more pictures of James in character, given exclusively to JustJared!

Katharine McPhee spends time with kids at a school during a recent trip to Africa with Malaria No More.

The 28-year-old Smash star – who declared the organization her charity of choice for 2012 – traveled to Ghana before heading to Burkina Faso to distribute mosquito nets to areas affected by the disease.

In Ouagadougou, Katharine planned to visit a school she helped build through her McPhee Outreach Project. The school had been flourishing until some students started falling behind after missing school because of the malaria problem in the region.

“[The nets] will be put to good use – and please know you will always have a home back here in Ghana!” a health director told Katharine, who also participated in a formal gathering of village chiefs called a durbar.

Sam Worthington and his girlfriend, Crystal Humphries, hit the red carpet together at the London premiere of his new movie, Wrath of the Titans, on Thursday (March 29) held at the
BFI IMAX.

Also attending and pictured inside: Liam Neeson!

PHOTOS: Check out the latest pics of Sam Worthington

Here's a synopsis of the movie, out March 30: Perseus (Worthington) embarks on a treacherous quest into the underworld to rescue Zeus (Neeson), who has been targeted for capture by his traitorous son, Ares (Edgar Ramirez), and his brother, Hades (Ralph Fiennes).

Beyonce steps out in a colorful ensemble on Thursday (March 29) in New York City.

The 30-year-old entertainer, wearing an Etro skirt, was spotted out the night before visiting a doctor’s office with her newborn daughter, Blue Ivy Carter!

PHOTOS: Check out the latest pics of Beyonce

Bey recently lined up a series of concerts at Revel in Atlantic City, New Jersey!

Bey will get back to business onstage with three exclusive shows – tickets will go on sale April 6.

P.S. Did you see Jessica Sanchez performing Bey‘s hit “Sweet Dreams” on American Idol earlier this week?