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Katy Perry, Jack Nicholson

HOLLYWOOD, CA - DECEMBER 04: Singer Katy Perry (L) and actor Jack Nicholson attend a celebration of Carole King and her music to benefit Paul Newman's The Painted Turtle Camp at the Dolby Theatre on December 4, 2012 in Hollywood, California. (Photo by Michael Buckner/Getty Images for The Painted Turtle Camp)

Top Shots of the Week

December 8, 2012

Miss any of this week's most memorable celebrity moments like Katy Perry and Jack Nicholson sharing a smooch, or some TV stars lighting a Christmas tree with the Obamas? Check out omg!'s Top Shots!