The band that Halloween, Christmas, and Guy Fawkes Day wish to start is described as having a "hiphop-punk-electronica vibe" by Cupid, but there is nothing electronic in the song. Trent helps the group out on guitar.
In-universe, The Holidays are much more successful than Trent's other group, Mystik Spiral. The crowd goes wild and the group gets parties booked up for the next year. Nevertheless, Trent goes back home to play with Mystik Spiral.
So I'm a bleeding holiday, there's more to my life than that, I say I got normal dreams, normal desires, want to drive a normal car with normal tires, yeah! I'm a teen holiday and it sucks! I'm a teen holiday and it sucks! I'm a teen holiday and it sucks! I'm a teen holiday and it sucks, yeah! Oh, yeah. (growls into mike)