Kim Kardashian is playing dead for a good cause — a new campaign to raise awareness for World AIDS Day and Keep A Child Alive. The reality star joins celebs like Lady Gaga and Justin Timberlake in making a “Digital Life Sacrifice,” wherein they stop using Twitter and Facebook in an effort to raise awareness and money for Keep A Child Alive. Kardashian and others have shot provocative ads where they pose in coffins and have even filmed “last tweet and testament” videos. They will log off on Dec. 1 (World AIDS Day) and not sign back on until $1 million has been raised.