Fans in Virginia Beach were treated to a rare performance by singer Chris Brown, who took the place of rapper Drake on the 'America's Most Wanted Tour' Sunday. Brown filled in for Drake -- who was spotted with Brown's ex Rihanna a few months ago -- on the Lil Wayne assisted single 'Every Girl,' while the rapper is in Toronto preparing for knee surgery.

In his first public appearance since releasing a video apologizing for his assault on pop/R&B Rihanna, the 20-year-old looked comfortable as he rapped and sang amidst the cheering crowd. Brown, a native of Virginia, also paid tribute to the deceased King of Pop Michael Jackson, playing 'Billie Jean' at the close of Wayne's set.

Wayne released a statement via his rep saying that he had to show Brown "sum luv," by asking him to perform on the tour. No word yet on whether or not Brown will appear at any other of the upcoming tour dates.

Drake injured his knee in June. Despite doctor's orders he opted to go on tour alongside Wayne, Soulja Boy, Young Jeezy, and newcomer Jeremih. Last weekend, the rapper fell on stage during a performance in New Jersey forcing him to pull out of the tour completely. He has since assured fans that he is in good spirits and will continue work on his highly anticipated debut 'Thank Me Later.'

The 'America's Most Wanted' tour raps up August 23 in Dallas, Texas.