Legion of Rock Stars (LRS) pioneered Pure Pleasure, in which the band listens to original recordings of classic rock and pop songs on 30db noise-blocking headsets, and then plays along.
Freed from the shackles of practicing, LRS focuses instead on bringing the excitement of a large stadium rock show to the intimate arenas in which it performs.
Update: Just had to embed this one too.

Ha, terrible but funny!
This is crazy fun!
Journey never sounded better!
That sounds like Johnny Earthquake and The Moondogs from Natchitoches, LA.