LONDON ? Michael Jackson's brother spoke Wednesday of his need to keep the pop legend's legacy alive as he prepared to perform at Britain's Mobo Awards in honor of the fallen star.

Jermaine Jackson, flanked by his sister Latoya, paid tribute to Michael, saying "he was a wonderful artist and a wonderful human being."

"My brother was everything to me," he said.

"He was a wonderful artist and a wonderful human being.

"I'm here to do what I can, it is part of our responsibility as a family to continue his legacy and keep it alive."

Latoya said she was "not at all" coming to terms with the death of Jackson in June, after he consumed a lethal cocktail of powerful prescription drugs.

His death is being treated as a homicide.

"I started crying last time I saw a tribute to him," she said. "I've got make sure I won't do that tonight."

Jermaine will perform "Smile", Jackson's favorite song, and will be introduced by Latoya. The Mobo Awards, held this year in Glasgow instead of London, celebrate music of black origins.