Strangest duet ever? Aladdin Sane and the Old Groaner for Christmas. ‘Peace On Earth' especially written for Bowie in just over an hour on 11 September 1977.
In a bizarre coincidence, David Bowie and Iman were married in a church service on the 20th anniversary of the release of Ziggy Stardust! That makes two reasons to mark June 6 as special.