Here are some interesting openers: 1) 1975/76 US tour: Toots and the Maytals These guys are a regae band from jamaica. Must have been preety interesting. 2) Lynard Skynard, 1973 If you read the liner notes on one of Lynard Skynard's live albums, it chronicles there experience of opening for The Who. There are even some Townshend quotes on the album's liner notes.