It wasn't just Miley Cyrus' daring dress that turned heads on Wednesday -- the 21-year-old's massive donation toward the fight against AIDS also got people talking. The singer appeared at the amfAR LA Inspiration Gala in Los Angeles to raise funds for AIDS research and bring attention to the virus. Cyrus bought a photograph for $300,000 at the event's auction and donated an additional $200,000 toward the American Foundation for AIDS Research, New York Daily News reported. "It’s so important for me of all people to represent because I have a voice and I want to start an open dialogue about prevention," Cyrus said at the event, according to Variety.