Best surprise, for a rock concert.....

This is from the 70's till now.
David Bowie 5 times
Iggy Pop 3 times
Lou Reed
Elvis Costello
ZZ Top 2 times
Alice Cooper 3 times
10 years after
Pink Floyd
Chuck Berry
Jerry lee lewis
Devo
George thorogood 3 times
Jethro Tull
Gentle Giant
Black Oak Arkansas
Edgar Winter
Johnny Winter
Elton John
The Cars
Led Zeppelin
Oingo Boingo
Bob Dylan
Warren Zevon
That's all I can remember for now.