Who performed "Killer/Papa was a rollin stone" at the AIDS benefit concert 'Concert of Hope' in 1993?

On 1st December 1993 on World AIDS Day, George Michael played a benefit concert in front of the late Diana, Princess of Wales at London’s Wembley Arena. Princess Diana was Britain’s Patron of the National AIDS Trust, and the 'Concert of Hope' was televised worldwide. He performed with “Killer/Papa was a rollin stone”.

"Killer" is a song by British acid house producer Adamski. Written by Adamski and Seal and produced by Adamski, "Killer" was Adamski's breakthrough single, but is now more notable for featuring Seal as a vocalist.

In 1991, George Michael performed "Killer" live at the Wembley Arena in a version that was released on the 1993 EP Five Live. "Papa Was a Rollin' Stone" was also recorded and released on the same album. The two songs were blended together in the live performance, then remixed several times.