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

Lauren Conrad @ Kanye West Official Afterparty

Lauren Conrad poses on the red carpet at the Absolute 100 official afterparty for the Kayne West concert in Hollywood on Tuesday night.

Picture by WireImages

Jamie Pressly @ Purex Saves Green Celeb T-Shirt Auction

My Name Is Earl actress Jamie Pressly attends the Purex Saves Green celebrity t-shirt auction kick-off on Tuesday in NYC. All the proceeds went to Earth Day Network.

Picture by Startracks

Nicole Richie in Hollywood

After returning from New York earlier in the week, Nicole Richie goes out sans baby Harlow on Tuesday afternoon in Hollywood.

Picture by National Photo Group

Rumour: Diane Farr Expecting Twins

People Magazine is reporting that Numb3rs star Diane Farr is expecting twins, due later this year. A source tells the magazine that Diane is reportedly leaving the CBS series at the end of the current season to prepare for the twins, and to begin working on at TV series with Peter Tolan. Diane is married to Seung Yong Chung, and they already have a son, Beckett, who is one.

Picture by iPhoto

Elizabeth Hurley @ Elizabeth Hurley for MNG Launch

Elizabeth Hurley was pretty in pink for the launch of Elizabeth Hurley for MNG on Tuesday in Madrid.

Picture by Getty

Mischa Barton @ Diesel Flagship Store Opening

Mischa Barton was wide-eyed at the opening of Diesel's flagship store in Tokyo at the Conrad Tokyo Hotel on Monday.

Picture by Getty

Emmy Rossum @ La Fille Du Régiment Opening

Emmy Rossum was one of the star guests who attended the opening of La Fille Du Régiment at the Metropolitan Opera in NYC on Monday.

Picture by George Taylor

Leighton Meester @ La Fille Du Régiment Opera Opening

While Gossip Girl returned on Monday night with not-so-great numbers, Leighton Meester attended the opening of La Fille Du Régiment at the Metropolitan Opera in NYC.

Picture by AP

David Beckham on Ellen DeGeneres

David Beckham shows off the skills that earn him big bucks on The Ellen DeGeneres Show on Monday, while host Ellen DeGeneres watches in the background.

Picture by Michael Rozman

Eva Longoria Parker Leaving Victoria Beckham's Birthday Party

Eva Longoria Parker leaves the Via Veneto restaurant in Santa Monica on Sunday night, following Victoria Beckham's birthday bash.

Picture by Flynet

Gwen Stefani & Gavin Rossdale @ Victoria Beckham's Birthday Party

Expectant couple Gwen Stefani and Gavin Rossdale (not pictured) left son Kingston, 22 months, at home while they attended Victoria Beckham's birthday party on Sunday night at the Via Veneto restaurant in Santa Monica.

Picture by National Photo Group

TomKat @ Victoria Beckham's Birthday Party

Tom Cruise and Katie Holmes arrive at the Via Veneto restaurant in Santa Monica on Sunday night for Victoria Beckham's birthday party. And it seems Katie has swipped our sunglasses!

Picture by National Photo Group

David & Victoria Beckham @ V's Birthday Bash

David Beckham escorts wife Victoria into the Via Veneto restaurant in Santa Monica on Sunday night, for the Spice Girl's birthday dinner.

Picture by National Photo Group

Matt Damon @ MIA with Wife + Daughter

Matt Damon touched down at the Miami International Airport on Sunday, with his pregnant wife Luciana and their daughter Isabella, 22 months. The trio have been in London, where Matt has been filming his latest movie.

Pictures by Mavrix Photo

Hilary Duff's Coffee Run

Hilary Duff grabs some coffee from a LA Starbucks on Sunday. Why two Hils?

Picture by INF

Heidi Klum & Children @ The Grove

Supermodel Heidi Klum took her three children; Leni, 3, Henry, 2, and Johan, 17 months; to The Grove in LA on Sunday.

Picture by Bauer Griffin

Ashlee Simpson + Pete Wentz Out in Hollywood

Ashlee Simpson, whose pregnancy rumours continue to confuse us, stepped out with fiancé Pete Wentz (of FallOut Boy fame) on Saturday night in Hollywood.

Picture by Pacific Coast News

Eva Mendes @ New York Comic Con

Fresh out of rehab, Eva Mendes attended the New York Comic Con on Saturday in NYC, where she spent the day promoting her new flick, The Spirit, which is based on the comic book by Will Eisner.

Picture by Film Magic

Gwen Stefani Shopping in LA

Pregnant singer Gwen Stefani took her bump out shopping in LA on Saturday. The singer got a parking ticket, and picked up a sing-a-long book of The Little Mermaid for son Kingston.

Picture by Starzlife

Melissa Joan Hart Celebrates Birthday with her Boys

Actress Melissa Joan Hart celebrated her 32nd birthday with her three boys: husband Mark Wilkerson, and their two sons Mason, 2, and Braydon, 5 weeks; at Disneyland in Anaheim last Friday.

Picture by Paul Hiffmeyer

Cate Blanchett Takes Ignatius to 2020 Summit

New mum Cate Blanchett took her six day old son Ignatius with her today to the Government's Australia 2020 Summit at Parliament House in Canberra. The actress will co-chair the creative meeting. Fellow actor Hugh Jackman joked with reporters, "I have given her my kids - she is looking after them for the weekend. Cate Blanchett is superwoman ... she is amazing on every level, I think she is flawless as a person and I am thrilled that she is leading our stream." Pictures by AAP, James Brickwood

'GG' Cast @ 'Early Show'

The Gossip Girl cast was out and about on Friday, promoting the return of season one episodes (April 21, April 21, April 21!) Leighton Meester, Chace Crawford, Ed Westwick and Jessica Szohr were all there at CBS's Early Show on Friday to promote their show.

Pictures by Star Tracks (via Just Jared), Splash News

'The Hills' Cast @ Hot Hollywood

Lauren Conrad, Lauren "Lo" Bosworth, Stephanie Pratt, Brody Jenner, Frankie Delgado and Stephen Colletti all represented the Laguna Beach/The Hills sector at Us Weekly's Hot Hollywood party at Beso in Hollywood on Thursday night.Pictures by WireImage, FilmMagic, Celebrity Photo