Alicia Keys and Lady Gaga take charity work seriously, and they're going offline to prove it.
Gaga, Justin Timberlake, Usher and other celebrities have joined a campaign called Digital Life Sacrifice that's part of Keys' charity, Keep a Child Alive. The entertainers plan to sign off of social media platforms like Facebook and Twitter on Tuesday, which is World AIDS Day. They will sign back on when the charity raises $1 million.
The campaign also features Jennifer Hudson, Ryan Seacrest, Kim Kardashian, Elijah Wood, Serena Williams and Swizz Beatz. They have filmed "last tweet and testament" videos and will appear in ads showing them in coffins to represent what the campaign calls their digital deaths.