If you're unfamiliar with it, the lyrics are as follows:
If you're a human being, take a break from the race.
Take the load off your feet, take the look off your face.
We got alot to do, and we do it for you.
Everybody take your place.
Muppets Tonight!
You're gonna see stuff you've never seen.
Tonights the night!
You're gonna hear things you've never heard.
We got a show for you, guaranteed brand new,
here come the Muppets Tonight! Yeah!
[Whistling solo]
We got a show for you, guaranteed brand new,
here come the Muppets,
here come the Muppets,
here come the Muppets Tonight!!