The "Roar" hitmaker is to head to the glitzy French town of Antibes in May to perform at the A-list fundraiser, which is held annually during the Cannes Film Festival and raises money for AIDS research, reported the Washington Post.
The performance will be watched by a host of big-name celebrities, including Sharon Stone, amfAR's global campaign chair, as well as "Superman Returns" actor Kevin Spacey and German model Heidi Klum.
The event is in its 23rd year and in 2015, raised more than USD 170 million for AIDS research.