Katherine Heigl in Roberto Cavalli dress New York- Arabstoday She’s not a musician, but she is married to one (and even presented an award with him), therefore, Katherine Heigl upstaging a whole handful of others with her choice of wardrobe to the 2011 American Music Awards seems to be just fine. The actress arrived to the event wearing a black floor-length gown with a long split on the leg and an unusual detail behind.  Katherine, who has never really been one to flaunt her body all that much, went for broke and showed some serious cleavage. The 32-year-old actress wore a Roberto Cavalli dress, Jimmy Choo shoes, a Judith Leiber clutch, and Sutra earrings. During the show, Katherine and her musically inclined husband shared a sweet kiss in the press room.