Brass (song)

Brass (A.K.A. the Ali-A intro) is a song that occasionally appears in videos for a couple seconds.

Ali-Jon Intro
In this video, Jon Arbuckle dances to it, like every Jon Dancing video.

Attack on Garfield episode 1
Jon Arbuckle watches Ali-A (though you can't see what he's watching) on a tv at the start

Metal Gear Nermal
the channel That briefly plays, is the earrape version of Ali-A's intro