LAS VEGAS (REUTERS) - Nine years after the death of the King of Pop, Michael Jackson's children and other family members came together to launch an auction, accept a posthumous award and remember the singer on what would have been his 60th birthday.

His children Paris and Prince Jackson, his brothers Tito and Jackie, and R&B singer Usher joined some 1,500 guests in Las Vegas on Wednesday (Aug 29) for a performance of the Cirque du Soleil show One, based on music by the Thriller singer.

Jackson died in Los Angeles in June 2009 after an accidental overdose of the powerful anesthetic propofol that he was using as a sleep aid.

His personal doctor, Conrad Murray, served two years in prison for causing his death through negligence.

Paris, 20, and Prince, 21, accepted the Elizabeth Taylor Aids Foundation Legacy Award for their father. Taylor, who died in 2011, was a close friend of the singer, and Paris is an ambassador for the Foundation.

"It is a privilege and honor to be here about something that my dad was so passionate about," Prince said.

The siblings also launched an auction for a newly created pair of ruby and diamond-studded sneakers that are expected to fetch more than US$50,000 (S$68,400) at a November sale. The money will go to Taylor's Aids foundation.