It's the Final Countdown. (Starring Sky Harbor and crippling Arizona heat!)
"The Final Countdown" had been the most ridiculous of all ridiculous '80s hair-metal songs for a long time already, but Arrested Development -- by tying it to a character who was ridiculous in a lot of the same ways -- gave it a certain ridiculous gravity. Once we all knew specifically why it was so incoherent, we could enjoy it together for that same reason. (It didn't hurt that it was suddenly part of the unstoppable Arrested-Development-reference ecosystem.)
Four more songs that got the Arrested Development treatment:
2. Vince Guaraldi Trio - "Christmas Time Is Here"

What's fascinating about this one is that "Christmas Time Is Here" is not a funny song, where "The Final Countdown" has kind of always been one. A lot of people find it very moving, and a lot of those people have an intimate, childhood-formed connection with it.
But it's hilarious in Arrested Development, because they use it to point up how inane some of the things that drive us to Charlie-Brown-level existential dread can be without decrying all Charlie-Brown-level existential dread as inherently inane. I feel pretty bad for George Michael in some of these! Tobias and Gob maybe not as much.