Mary J Blige, Akon, Chris Brown for Michael Jackson Vienna tribute gig

Natalie Cole and Sister Sledge also signed up for concert

Mary J. Blige, Akon, Chris Brown, Natalie Cole and Sister Sledge have signed up to perform at a forthcoming Michael Jackson tribute show in Vienna.

The show is being organised by the late singer’s brother Jermaine Jackson and is set for the Schoenbrunn castle on September 26. More acts (believed to total around 25) are set to be announced soon, reports Reuters.

The gig had originally been set to take place at London‘s Wembley Stadium but Jermaine Jackson decided to change the venue, citing his brother’s love of castles as one of the reasons for the switch.

“He loved castles. And we’re going to have this huge celebration in front of a castle,” he previously said on US TV show Larry King Live.