Greil Marcus' Lipstick Traces quotes Pete Townsend describing his first Sex Pistols show. I can't give you the exact quote because I've packed the book away, but I can get close. Townsend says that there he was, the crowd going berserk, the band going berserk, and he was suddenly shocked by the realization that this was actually happening.
In that spirit, I give you Patti Smith singing “You Light Up My Life” for an audience of children.
Bonus: I also have the Smiths on British kids' show Charlie's Bus.