Celebrity Circuit

Actor Zac Efron poses his co-star Taylor Schilling at the European premiere of their latest film "The Lucky One" in London on April 23, 2012.

NEXT: Carrie Underwood

Singer Carrie Underwood visits SiriusXM Studio on April 27, 2012, in New York.

NEXT: Justin Bieber

Singer Justin Bieber attends the Tribeca Disruptive Innovation Awards during the 2012 Tribeca Film Festival at the NYU Paulson Auditorium on April 27, 2012, in New York.

NEXT: Justin Bieber

Journalist Perri Peltz, singer Justin Bieber and his manager, Scooter Braun, attend the Tribeca Disruptive Innovation Awards during the 2012 Tribeca Film Festival at the NYU Paulson Auditorium on April 27, 2012, in New York.

NEXT: David Arquette

Mike Coppola/Getty Images for Hollywood Reporter

Actor David Arquette attends Google & Hollywood Reporter Host an Evening Celebrating The White House Correspondents Weekend on April 27, 2012, in Washington.

NEXT: Woody Harrelson

Actor Woody Harrelson arrives at a red carpet event hosted by Google and the Hollywood Reporter, on the eve of the annual White House Correspondents Association dinner in Washington on April 27, 2012.

NEXT: Jim Carrey

Actor Jim Carrey speaks at The Comedy Awards 2012 at Hammerstein Ballroom on April 28, 2012, in New York.

NEXT: Kristen Wiig

Actors Kristen Wiig and Annie Mumolo accept an award onstage at The Comedy Awards 2012 at Hammerstein Ballroom on April 28, 2012, in New York.

NEXT: Matthew Perry

Actor Matthew Perry speaks onstage at The Comedy Awards 2012 at Hammerstein Ballroom on April 28, 2012, in New York.

NEXT: John Stamos

Actor John Stamos joins The Beach Boys on stage and performs during the 2012 New Orleans Jazz & Heritage Festival Presented by Shell at the Fair Grounds Race Course on April 27, 2012, in New Orleans.

NEXT: Mike Love

Actor John Stamos joins Mike Love of The Beach Boys on stage and performs during the 2012 New Orleans Jazz & Heritage Festival Presented by Shell at the Fair Grounds Race Course on April 27, 2012, in New Orleans.

NEXT: Rihanna

Singer/actress Rihanna attends the "Battleship" photo call at the Battleship Missouri Memorial on April 28, 2012, in Pearl Harbor, Hawaii.

NEXT: Alexander Skarsgard

Actor Alexander Skarsgard attends the "Battleship" photo call at the Battleship Missouri Memorial on April 28, 2012, in Pearl Harbor, Hawaii.

NEXT: Sheryl Crow

Christopher Polk/Getty Images for Stagecoach

Musician Sheryl Crow performs onstage during the Stagecoach Country Music Festival held at the Empire Polo Field on April 29, 2012, in Indio, Calif.

NEXT: Justin Moore

Kevin Winter/Getty Images for Stagecoach

Singer Justin Moore with his daughter performs during the Stagecoach Country Music Festival held at the Empire Polo Field on April 28, 2012, in Indio, Calif.

NEXT: Steve Martin

Musician/actor Steve Martin performs during the Stagecoach Country Music Festival held at the Empire Polo Field on April 28, 2012, in Indio, Calif.

NEXT: Blake Shelton and Miranda Lambert

Singers Blake Shelton and Miranda Lambert perform during the Stagecoach Country Music Festival held at the Empire Polo Field on April 28, 2012, in Indio, Calif.

NEXT: Martina McBride

Singer Martina McBride performs onstage during the Stagecoach Country Music Festival held at the Empire Polo Field on April 29, 2012, in Indio, Calif.

NEXT: David Hasselhoff

Frazer Harrison/Getty Images for Stagecoach

Actor David Hasselhoff attends the Stagecoach Country Music Festival held at the Empire Polo Field on April 27, 2012, in Indio, Calif.

NEXT: Jon Bon Jovi

Jon Bon Jovi performs during Tiger Jam 2012 at the Mandalay Bay Events Center April 28, 2012, in Las Vegas.

NEXT: Daniel Craig

From left, actress Berenice Marlohe, actor Daniel Craig and actress Naomie Harris pose during the presentation of the lastest James Bond 007 film "Skyfall" at Ciragan Palace in Istanbul on April 29, 2012.

NEXT: Daniel Craig

British actor Daniel Craig poses during the presentation of the latest James Bond 007 film "Skyfall" at Ciragan Palace in Istanbul on April 29, 2012.

NEXT: Susan Lucci

Actress Susan Lucci attends the 2012 March of Dimes March for Babies on the Streets of Manhattan on April 29, 2012, in New York.

NEXT: Felicity Huffman

Actress Felicity Huffman arrives to the series finale of ABC's "Desperate Housewives" at W Hollywood on April 29, 2012, in Hollywood, Calif.

NEXT: Nathan Fillion

Bob Fillion and actor Nathan Fillion arrive to the series finale of ABC's "Desperate Housewives" at W Hollywood on April 29, 2012, in Hollywood, Calif.