John Legend attends the third annual amfAR Milano event, held in conjunction with Milan Fashion Week at La Permanente in Milan.

*R&B star John Legend has helped to raise $540,000 for an AIDS research charity after auctioning off two private concerts during a benefit in Italy.

The singer was one of the star attractions at amfAR’s 25th annual gala in Milan on Friday (Sept. 23), and his two lots sold for $270,000each, according to WENN.

The event, hosted by supermodel Heidi Klum, also saw a bidding war pop up between celebrated designers Roberto Cavalli and Margherita Missoni over a piece of art.

According to the New York Post, the item was eventually claimed by the veteran fashion icon after Missoni declared, “I’m too young to outbid a legend!”