The Life Ball in Vienna is the biggest charity event in Europe supporting people with HIV or AIDS. The event is organized by the nonprofit organization AIDS LIFE, which was founded in 1992 by Gery Keszler and Torgom Petrosian.
Through the years the Life Ball garnered more international attention because of the exuberant celebration of the party people and the live acts. However the main priority is still to raise awareness and to fight Aids.
This years theme is arabian nights
Bill Clinton
Elton John
Azealia Banks
Fergie
Hilary Swank
Barbara Eden
Adam Lambert
Melanie Griffith
Aishwarya Rai
Carmen Electra
Willam, Detox , Vicky Vox
Kelly Osbourne
Karolina Kurkova
Some guests and their costumes
Source