Celebrity Circuit

Singer Gwen Stefani arrives at the world premiere of the music video for Paul McCartney's song, "My Valentine," in West Hollywood, Calif., April 13, 2012.

NEXT: Reese Witherspoon

Actress Reese Witherspoon arrives at the world premiere of the music video for Paul McCartney's song, "My Valentine," in West Hollywood, Calif., April 13, 2012.

NEXT: Kristen Stewart

Actress Kristen Stewart arrives at the world premiere of the music video for Paul McCartney's song, "My Valentine," in West Hollywood, Calif., April 13, 2012.

NEXT: Ginnifer Goodwin

Actress Ginnifer Goodwin arrives at the world premiere of the music video for Paul McCartney's song, "My Valentine," in West Hollywood, Calif., April 13, 2012.

NEXT: Miranda Kerr

Model Miranda Kerr arrives at the world premiere of the music video for Paul McCartney's song, "My Valentine," in West Hollywood, Calif., April 13, 2012.

NEXT: Gwyneth Paltrow

Actress Gwyneth Paltrow arrives at the world premiere of the music video for Paul McCartney's song, "My Valentine," in West Hollywood, Calif., April 13, 2012.

NEXT: Pamela Anderson

Actress Pamela Anderson and Dan Mathews arrive at the world premiere of the music video for Paul McCartney's song, "My Valentine," in West Hollywood, Calif., April 13, 2012.

NEXT: Tom Brokaw

AP Photo/Ventura County Star, Chuck Kirman

New York Times best-selling author and NBC News special correspondent Tom Brokaw signs copies of his latest book, "The Times of our Lives: A Conversation About America," at the Ronald Reagan Presidential Library, in Simi Valley, Calif., April 14, 2012.

NEXT: Queen Latifah

AP Photo/Molly Bartels, The Evansville Courier & Press

University of Southern Indiana student, Antonio King, 19, sings, "Big, Blonde, and Beautiful" to singer/actress Queen Latifah, when she met with a group of students from the University of Southern Indiana, the University of Evansville and Ivy Tech Community College on April 12, 2012.

NEXT: Penelope Cruz

Actress Penelope Cruz attends the premiere of the movie "To Rome with Love," in Rome, April 13, 2012.

NEXT: Leonardo DiCaprio

Actor Leonardo DiCaprio poses for photos promoting his upcoming film "Django Unchained" at the Summer of Sony 4 Spring Edition photo call in Cancun, Mexico, April 15, 2012.

NEXT: Jamie Foxx

Actor Jamie Foxx poses for photos promoting his upcoming film, "Django Unchained," at the Summer of Sony 4 Spring Edition photo call in Cancun, Mexico, April 15, 2012.

NEXT: Kerry Washington

Actress Kerry Washington poses for photos promoting her upcoming film, "Django Unchained," at the Summer of Sony 4 Spring Edition photo call in Cancun, Mexico, April 15, 2012.

NEXT: Christoph Waltz

Actor Christoph Waltz poses for photos promoting his upcoming film, "Django Unchained," at the Summer of Sony 4 Spring Edition photo call in Cancun, Mexico, April 15, 2012.

NEXT: Quentin Tarantino

From left, Actors Leonardo DiCaprio, Kerry Washington, director Quentin Tarantino, actor Jamie Foxx and Austrian actor Christoph Waltz pose for photos promoting their upcoming film, "Django Unchained," in Cancun, Mexico, April 15, 2012.

NEXT: Adam Sandler

Actor Adam Sandler waves to fans as he poses for photos promoting his upcoming film, "Hotel Transylvania," at the Summer of Sony 4 Spring Edition photo call in Cancun, Mexico, April 15, 2012.

NEXT: Kevin James

Actor Kevin James poses for photos promoting his upcoming film, "Hotel Transylvania," at the Summer of Sony 4 Spring Edition photo call in Cancun, Mexico, April 15, 2012.

NEXT: Andy Samberg

Actor Andy Samberg poses for photos promoting his upcoming film, "Hotel Transylvania," at the Summer of Sony 4 Spring Edition photo call in Cancun, Mexico, April 15, 2012.

NEXT: "American Reunion" cast

From left, actors, Seann William Scott, Eugene Levy, Thomas Ian Nicholas, Jason Biggs, Tara Reid, Jennifer Coolidge, Mena Suvari, Chris Klein and Eddie Kaye Thomas, from the cast of "American Reunion" pose for photographers on an open top bus, London, April 16, 2012.

NEXT: Jason Biggs

Actor Jason Biggs gestures as he passes the London landmark Big Ben, for an "American Reunion" photo call on an open top bus, London, April 16, 2012.

NEXT: Zach Braff

Actor Zach Braff and model Taylor Bagley arrive for the Olivier Awards at the Royal Opera House, London, April 15, 2012.