1 of 18 John Shearer/WireImage.com
Jason Segel and Kristen Bell strut their stuff at the Hollywood premiere of their new film, Forgetting Sarah Marshall. In the film, Bell plays Segel's fiancee who leaves him, but in real life, the pair look pretty chummy.
2 of 18 Jon Furniss/WireImage.com
Kate Hudson and Matthew McConaughey are ravishing together on the red carpet in central London at the premiere of their water-bound flick, Fool's Gold.
3 of 18 Lester Cohen/WireImage.com
Just when you thought Justin Timberlake had won everything already, the prince of pop poses with his ASCAP awards in Hollywood. (ASCAP, of course, is the American Society of Composers, Authors and Publishers. And they clearly have good taste.)
4 of 18 Jeffrey Mayer/WireImage.com
Lionel Richie was receiving honors at the ASCAP annual Pop Music Awards, but directed the photogs to his daughters, Nicole and Sophia (who, despite their age difference, clearly take the same style cues). Mr. Richie won a lifetime achievement award.
5 of 18 Joe Kohen/WireImage.com
Michael Bolton (yes, that smooth-jazz-playing Michael Bolton) gets some red-carpet love from Jane Krakowski and Vanessa Williams. The three attended the Lincoln Center Spring Gala in New York.
6 of 18 Kevin Mazur/WireImage.com
Elizabeth Hurley and Gwyneth Paltrow rock a sizzling sari and a hot, strapless frock, respectively. The two hit the red carpet at the Breast Cancer Research Foundation's Hottest Pink Party in New York.
7 of 18 Michael Bezjian/WireImage,com
TV Guide Network hosts Justin Guarini and Kimberly Caldwell strike their most badass of poses at the launch party for Shoes for Stars in L.A.
8 of 18 Denise Truscello/WireImage.com
A pregnant Angelina Jolie waves to onlookers as she leaves the "Iraq, Education, and Children of Conflict" discussion at a Council on Foreign Relations forum. With her demure exit, the actress wins most brainy celeb appearance of the week, hands-down.
9 of 18 Mark Von Holden/WireImage.com
Patrick Stewart ditches his old captain's uniform for more formal attire at the after-party for the opening night of Macbeth on Broadway. The actor portrays the play's eponymous Scottish king in the production.
10 of 18 Jim Spellman/WireImage.com
That Sexy foursome of Cynthia Nixon, Sarah Jessica Parker, Kim Cattrall and Kristin Davis arrive at the Point Foundation Honors the Arts' red carpet. Nixon was honored with the Point Courage Award for her support of the LGBT community.
11 of 18 Joe Kohen/WireImage.com
The gorgeous Padma Lakshmi cooks up a spicy fashion statement in a Dior suit at the 2008 Matrix Awards. Bravo's Top Chef host made her way down the carpet, en route to the luncheon at the Waldorf-Astoria.
12 of 18 Steve Granitz/WireImage.com
Making a dramatic entrance, singer Carrie Underwood arrives at the taping of Idol Gives Back at the Kodak Theatre on Sunday in Hollywood.
13 of 18 Steve Granitz/WireImage.com
David Spade and a slick-looking Fergie pause for a pic as they arrive at the taping of Idol Gives Back. The two stars joined just about every other celebrity on the planet for the annual charity event.
14 of 18 Gregg DeGuire/WireImage.com
Desperate Housewives cast mates James Denton and Teri Hatcher take a moment together at the 7th-annual Comedy for a Cure show. Hatcher was honored at the event, where she glowed in a tangerine dress.
15 of 18 Denise Truscello/WireImage.com
Happy 82nd birthday, Hugh Hefner! The Playboy godfather gets ready to cut some cake, as he's flanked by his lovely girlfriends, Holly Madison and Kendra Wilkinson.
16 of 18 Michael Caulfield/WireImage.com
Even in formal attire, country-music queens Reba McEntire and Faith Hill are tough ladies. The two show off their best fighting fists and flex a little muscle at Muhammad Ali's Celebrity Fight Night XIV.
17 of 18 Jean Baptiste Lacroix/WireImage.com
Gwen Stefani, Gavin Rossdale and their son Kingston take a Saturday outing to an L.A. museum, looking a little stern (no pictures at an exhibition), but nothing less than their usual stylish selves.
18 of 18 Johnny Nunez/WireImage.com
Russell Simmons is all smiles as he poses with daughters Aoki Lee and Ming Lee. He and the girls attended the Rush Philanthropic Arts Foundation Gala in Miami Beach. The hip-hop mogul's foundation supports arts education for young children.