Chris Brown, Mary J Blige and Akon are among the first acts confirmed for a Michael Jackson tribute concert in Vienna.

The gig, which will take place on September 26, will also feature performances from Angela Bassett, Sister Sledge and German boy band US5.

The initial line up details were announced by Jackson's brother and the event's main supporter Jermaine at a press conference this morning.

He told reporters that “many, many surprises” had yet to be confirmed.

“This is growing more and more, and we have more names to announce,” Jermaine said.

The artists are expected to perform some of Jackson's biggest hits, including 'Thriller' and 'Billie Jean', at the event.

The concert will take place in front of 65,000 fans at Vienna's former imperial Schoenbrunn Palace.

Jackson died on June 25 at his rented home in Los Angeles of acute Propofol intoxication. He was buried last week in a private ceremony attended by family and close friends.

(by Jason Gregory)