The shows featured Desmond on drums, plus singing from Roger Daltrey - frontman of The Who, the rockers for whom Edwards has done PR since PRWeek was in short pants - and an auction by BBC chair Michael Grade.
Ears still ringing, Edwards goes all nostalgic on us when asked if he enjoyed the show: 'My first job in music PR was to go on the road with The Who ... in those days, limos and champagne for the media were the norm - but I wasn't aware of this.'
He explains: 'I was asked to take Fleet Street's finest to Wembley to review them, but instead of luxury transport I walked them onto a rush-hour Tube train at Baker Street.
'I got some odd looks from the press, who obviously didn't envisage me being in PR for a long run!'
But as our picture proves, the Outside chief continues to rock on.