The Rocket Man, a Tribute to Sir Elton John ⚝⚝⚝⚝  Adelphi Theatre, London Elton John performed a gig at London’s Adelphi Theatre last night. Except, of course, it wasn’t Elton, now retired from live performance. It was Elton John impersonator Jimmy Love, at the London performance of The Rocket Man, a Tribute to…