Emerson Lake and Palmer's Karn Eval comes to mind here:
Welcome back my friends to the show that never ends
We're so glad you could attend, come inside, come inside
There behind a glass …stands a certificate earned real fast
Be careful as you pass, move along, move along
Come inside, the show's about to start
Guaranteed to blow your head apart
Rest assured you'll get your money's worth
Greatest show in Heaven, Hell or Earth
You've got to see the show, it's a dynamo
You've got to see the show, it's rock and roll, oh
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