Steven Tyler

Singer Steven Tyler in Los Angeles, California. (Photo by Wendi Kaminski/NBAE via Getty Images)

Christina Aguilera

Christina Aguilera and her husband Jordan Bratman in Los Angeles, California. (Photo by Noel Vasquez/Getty Images)

Ken Jeong

Actor Ken Jeong in Beverly Hills, California. (Photo by Jerod Harris/Getty Images for IMF)

Ke$ha

Singer Ke$ha in Los Angeles. (credit: MARK RALSTON/AFP/Getty Images)

John Galliano

Designer John Galliano in New York City. (Photo by Jason Kempin/Getty Images)

Rainn Wilson

Actor Rainn Wilson at Santa Monica Beach in Santa Monica, California. (Photo by Kevork Djansezian/Getty Images)

Miley Cyrus

Singer/actress Miley Cyrus in Los Angeles, California. (Photo by Jason Merritt/Getty Images)

Chloe Sevigny

Actress Chloe Sevigny in Los Angeles, California. (Photo by Jason Merritt/Getty Images)

Ben Stiller

Actor Ben Stiller at Kodak Theatre in Hollywood, California. (Photo by Kevin Winter/Getty Images)

Ryan Cabrera

Musician Ryan Cabrera in Los Angeles, California. (Photo by Angela Weiss/Getty Images)

Leona Lewis

Singer Leona Lewis in Beverly Hills, California. (Photo by Jason Merritt/Getty Images)

Lady Gaga

(Photo by Ethan Miller/Getty Images)

Recording artist Lady Gaga at the 2011 International Consumer Electronics Show. (Photo by Ethan Miller/Getty Images)

Nicki Minaj

Rapper Nicki Minaj in Los Angeles, California. (Photo by Frederick M. Brown/Getty Images)