Rolling Stones legend Ronnie Wood joined pop star Cyndi Lauper on stage for an impromptu duet.
Wood took to the stage with the Girls Just Wanna Have Fun singer to perform a new song and wowed crowds in Cannes.
Guests at the Belvedere (RED) party included Hollywood funnyman Chris Dowd, Bonnie Wright and Tamara and Petra Ecclestone.
Following in the footsteps of music icons Debbie Harry, Grace Jones and Duran Duran, Lauper belted out songs in a memorable performance as part of the celebrity-studded festival promoting the support of programmes that help eliminate HIV/Aids in Africa.
Grammy award-winning Lauper said: "I fully support the collaboration between Belvedere Vodka and (RED) to raise awareness about HIV/Aids in Africa in their fight to save lives.
"If I can encourage everyone to show their support and help achieve the first Aids-free generation by 2015, then I've done more than I could ever have dreamed. The fight against HIV/Aids starts with you: please buy (RED)."