Conan sticks it to NBC with some Led Zeppelin: Watch the video!

If you ever find yourself hosting a late-night talk show while you're at odds with the network it's being carried on, don't forget there are ways to get back at the network while you're on the way.

For an example, look no further than last night's "Tonight Show" and Conan O'Brien's reaction to his house band playing "Misty Mountain Hop" from Led Zeppelin's fourth album when returning from a commercial.

"It costs the network a lot of money when we play Zeppelin," the spurned host said from his desk, then launching into uproarious laughter and even knocking over the microphone on his desk.

Ah, sweet, sweet revenge.