A slew of celebs are donating their time and energy to the Digital Life Sacrifices campaign for Alicia Keys' Keep a Child Alive charity. These stars have vowed to sign off Facebook and Twitter—hence posing in coffins after their "digital death"—on World AIDS Day, Dec. 1, until the charity raises $1 million. Click in to see all the do-gooding stars.
MORE PHOTOS: Celeb Do-Gooders!