Playful works from a pop titan go under the hammer

George Michael and his partner Kenny Goss amassed a collection of leading-edge artworks that read like a snapshot of their time

Tracey As Frida by Mary McCartney

The silly sums earned by pop stars can be manna from heaven for the art market - and charitable causes. A case in point is the George Michael collection, amassed by the late singer and his longtime partner Kenny Goss, due ...