Kelly Rowland in Roberto Cavalli Gym and Just Cavalli

Kelly Rowland in Roberto Cavalli Gym and Just Cavalli:

Kelly Rowland arriving at the X Factor UK studios wearing a top from the Roberto Cavalli Gym collection on Friday November 18, 2011 in London.

Kelly Rowland arriving at the X Factor UK studios wearing a top from the Roberto Cavalli Gym collection on Friday November 18, 2011 in London.

Kelly Rowland arriving at the X Factor UK studios wearing a t-shirt from the Roberto Cavalli Gym collection and a Just Cavalli blazer.

Kelly Rowland arriving at the X Factor UK studios wearing a t-shirt from the Roberto Cavalli Gym collection and a Just Cavalli blazer.

Kelly Rowland in Roberto Cavalli Gym and Just Cavalli:

Kelly Rowland arriving at the X Factor UK studios wearing a top from the Roberto Cavalli Gym collection on Friday November 18, 2011 in London.

Kelly Rowland arriving at the X Factor UK studios wearing a top from the Roberto Cavalli Gym collection on Friday November 18, 2011 in London.

Kelly Rowland arriving at the X Factor UK studios wearing a t-shirt from the Roberto Cavalli Gym collection and a Just Cavalli blazer.

Kelly Rowland arriving at the X Factor UK studios wearing a t-shirt from the Roberto Cavalli Gym collection and a Just Cavalli blazer.

Katherine Heigl in Roberto Cavalli

Katherine Heigl opted to wear an evening gown by Roberto Cavalli on occasion of the American Music Awards 2011, which took place on Sunday November 20 in Los Angeles, California.

Katherine Heigl in Roberto Cavalli

Katherine Heigl in Roberto Cavalli

Katherine Heigl opted to wear an evening gown by Roberto Cavalli on occasion of the American Music Awards 2011, which took place on Sunday November 20 in Los Angeles, California.

Katherine Heigl in Roberto Cavalli

Katherine Heigl in Roberto Cavalli

Mary J. Blige in Roberto Cavalli

Mary J. Blige opted to wear an evening gown by Roberto Cavalli on occasion of the American Music Awards 2011, which took place on Sunday November 20 in Los Angeles, California.

Mary J. Blige in Roberto Cavalli

Mary J. Blige in Roberto Cavalli

Mary J. Blige opted to wear an evening gown by Roberto Cavalli on occasion of the American Music Awards 2011, which took place on Sunday November 20 in Los Angeles, California.

Mary J. Blige in Roberto Cavalli

Mary J. Blige in Roberto Cavalli