Can’t find  Lady Gaga, Kim Kardashian or Serena Wiliams on Twitter today?  They’ve all died a digital death.

In honor of World AIDS Day today, these singletons and other celebrities have joined a new campaign called Digital Life Sacrifice on behalf of Alicia Keys’ charity, Keep a Child Alive .  To participate, the entertainers have signed off social media like Facebook and Twitter and will sign back on when the charity raises $1 million.

Celebrities have filmed “last tweet and testament” videos and will appear in ads showing them lying in coffins to represent what the campaign calls their digital deaths.

“We’re trying to sort of make the remark: Why do we care so much about the death of one celebrity as opposed to millions and millions of people dying in the place that we’re all from?” said Leigh Blake, the president and co-founder of Keep a Child Alive in an interview with Associated Press.

Lady Gaga has over 7.2 million followers on Twitter and almost 24 million fans on Facebook.  If each of these donated just $1, the organizations would more than reach their goal.