Singer Janet Jackson, who was impressed by the way technology brought her late brother Michael Jackson 'alive' in a convincing way at the recently held Billboard Music Awards, remembered the King of Pop as a "genius".

Michael had died of acute Propofol intoxication in June 2009.

Following the performance of Michael's hologram version to "Slave to the rhythm" Sunday, Janet took to Twitter to post: "My brother, Michael, was, is and always will be a genius. I love you, Mike. Janet."

It was originally rumoured that Janet was set to join the hologram version of her brother on stage for the performance of the song, which Michael originally recorded with L.A. Reid and Babyface during sessions for his "Dangerous" album in 1991. But she couldn't make it.

The album released on the posthumous "XSCAPE" record May 13.