Christina Aguilera

CULVER CITY, CA – JANUARY 28: Singer/songwriter Christina Aguilera attends Hollywood Stands Up To Cancer Event with contributors American Cancer Society and Bristol Myers Squibb hosted by Jim Toth and Reese Witherspoon and the Entertainment Industry Foundation on Tuesday, January 28, 2014 in Culver City, California. (Photo by Charley Gallay/Getty Images for Entertainment Industry Foundation)