[Old School Hound]

At a gig in Toronto in 1977 , Canadien band , April Wine , opened for a band that was billed under the alias , "The Cockroaches."  After AW performed, the Cockroaches took the stage to the delight of unsuspecting concert goers.  The Cockroaches tuned out to be ...

The Rolling Stones.

 And now you know the rest of the story.