Ah the user generated mash up. Party to a million you tube views, promoter of good ads and rubbish manga with MOR rock mixes.
Fallon have seen fit to air a user remix of the Gorilla ad, featuring Bonnie Tyler's total eclipse of the heart. Nice idea, except it doesn't work anywhere near as well. The build up is weaker, the payoff is weaker, the drumming is weaker.
Also, if (like me) you hadn't seen that remix before seeing it on tv; you watch it thinking its a spoof, or they have tried to change it, or make another ad on the cheap by using a different song.