Interesting/unusual concert pairings.


The Who as openers for Herman’s Hermits. Pretty much a failure. John McLaughlin and the Mahavishnu Orchestra opening for Zappa and the Mothers.  Worked so well I attended in Milwaukee and Boston. McLaughlin and Zappa call and response noodling was spectacular.  Roger Daltry did not join Peter Noone for a duet of, “Mrs. Brown you’ve got a lovely daughter “
wideload
I recall Edgar Winters White Trash opening for Emerson, Lake, & Palmer at a very trippy Fillmore East.  White Trash annihilated ELP!  And a practically empty My Fathers Place (mid-week) had Jazz band Winters Consort headlining with this skinny runt of a dude from Jersey opening.  It wasn't even close, not too many bands in the country stood a chance against Bruce Springsteen and the E St. Band!!;)
I saw Livingston Tayler open for Jethro Tull in 1972.  It was a disaster for him. People were throwing eggs and tomato’s at him and yelling “we want Tull”. He got booed off the stage. 
Just to be clear, I merely provided information about the Beastie Boys opening for Madonna. Was NOT at the concert. Although the BB's are kinda cool.....
Sammy Hagar opening for Boston.  Hagar put on such an energetic performance and Boston just kind of stood around and played their instruments.  No stage presence, at least not after the full on blitz from Sammy and his band.