Mariah Carey on 'Good Morning America'

Mariah Carey performed her latest hits on Friday's episode of Good Morning America's Summer Concert Series at Times Square in NYC.

Picture by Corbis

Minnie Driver in Dublin

Pregnant Minnie Driver attends the 'Fashion Targets Breast Cancer' launch event in Dublin, Ireland, on Friday.

Picture by Bauer Griffin

Leighton Meester @ 'Killer Movie' Premeire

Leighton Meester shows off her killer pins at the NYC premiere of Killer Movie at the Tribeca Film Festival on Thursday night.

Picture by Corbis

Hugh Laurie @ PRISM Awards

House star Hugh Laurie on the red carpet at the 12th Annual PRISM Awards in Beverly Hills on Thursday.

Picture by Corbis

Andrea & Jennie Show Off Awards

Desperate Housewives daughter Andrea Bowen joins forces with former Beverly Hills 90210 star Jennie Garth to show off their matching PRISM Awards on Thursday night at the 12th Annual PRISM Awards in LA.

Picture by WireImages

Andrea Bowen & James Denton @ PRISM Awards

Desperate Housewives co-stars Andrea Bowen and James Denton arrive at the 12th Annual PRISM Awards in Beverly Hills on Thursday.

Picture by Corbis

Speidi @ Stephanie's Birthday Party

Spencer Pratt and girlfriend Heidi Montag arrive with balloons in hand for his sister Stephanie's 22nd birthday party at Boulevard 3 in LA on Thursday night.

Picture by Pacific Coast News

Angelina Jolie Out For Lunch

Pregnant Angelina Jolie took a break for some lunch at Marino Ristorante on Thursday. Bub number 5 is due in June/July.

Picture by JFX

Audrina Patridge Out Shopping

While Lauren and Lauren were out with Chloe, Audrina Patridge was out shopping in in West Hollywood on Thursday. Audrina was recently voted #80 in FHM Online's Top 100 Sexiest Women 2008 poll. Lauren Conrad came in at #90, and arch nemesis Heidi Montag beat out both Hills girls, coming in at #44.

Picture by WENN, via Just Jared

Lauren Squared Take Chloe for a Walk

The Hills besties Lauren Conrad and Lauren "Lo" Bosworth took LC's pooch Chloe for a walk in Hollywood on Thursday.

Picture by Splash News Online

Leighton's Ready to Set Sail

Leighton Meester looks ready to set sail in a nautical-inspired outfit on the set of Gossip Girl on Thursday in NYC. Where's B off too?

Picture by Pacific Coast News

Look at Little Violet!

Little Violet Affleck sure is a cutie! The toddler, who is the spitting image of mum Jennifer Garner, had fun in Boston on Thursday while out with mum.

Picture by INF

Tina Fey & Amy Poehler on 'TRL'

Baby Mama co-stars Tina Fey and Amy Poehler wonder how to answer that question while appearing on MTV's Total Request Live in NYC on Tuesday.

Picture by AP

Carmen Electra Engaged - Again!

Carmen Electra is headed for the alter, yet again. The actress is engaged to boyfriend Rob Patterson, her rep confirmed to People. A source also tells the mag that, "the ring is a black diamond set in white diamonds." Carmen has previously been married to Dennis Rodman and Dave Navarro.

Picture by WireImages

Elisabeth Hasselbeck @ My Little Pony Tea Party

The View's Elisabeth Hasselbeck took her three-year-old daughter Grace to the My Little Pony 25th Anniversary Tea Party at Madison Square Garden in NYC on Thursday.

Picture by Bauer Griffin

'Baby Mama' New York Premiere

Saturday Night Live co-stars, and movie co-stars, Tina Fey and Amy Poehler attend the premiere of their latest joint production, Baby Mama, on Wednesday night in NYC. Forgetting Sarah Marshall star Kristen Bell was also there.

Pictures by Bauer Griffin, WireImages

Lauren Conrad @ Redkens Real Control Cocktail Party

The Hills' star Lauren Conrad enjoys herself at the Redkens Real Control cocktail party at the Warren Tricomi Salon in West Hollywood on Wednesday.

Picture by Getty, via Just Jared

Eva & Tony Hit Up Toast

Eva Longoria Parker spends some quality time with hubby Tony, spending Wednesday getting lunch at Toast in Hollywood.

Picture by Pacific Coast News

Going to the Chapel, Gossip Girl Style

The cast of Gossip Girl hit the Palace Hotel in New York City on Wednesday, to film scenes for Kelly Rutherford's character Lily van der Woodsen's wedding to Bart Bass. Present? Blake Lively (who plays Rutherford's on-screen daughter Serena) and her buddy Leighton Meester (who plays rich bitch Blair Waldorf - gotta love B!). S's boyfriend Dan (Penn Badgley) was also there, in suit. Pictures by Bauer Griffin, via Just Jared

Maria Sharapova Celebrates 21st

Russian tennis superstar Maria Sharapova blows out the candles on her 21st birthday cake on Tuesday night at the Tenjune nightclub in NYC.

Picture by SIPA