does anyone know this riff...?

i saw Buckethead playing this thingy somewhere on youtube, and i can now play it too. i don't know what it is, but i really recognise it from somewhere.

it's played with the left hand only, as you just use hammer ons/ pull offs, but you can use the right hand to tap bass notes (A, G, B, A). it's all on the e-string

here it is:

e:-5-0-7-0-3-5-0-5-0-8-0-5-7-0-3-0-:

it's just repeated 8x and you change the bass note from A to G to B to A at the start of each one.

if you know what it's called, please tell!
thanks

don't ever stand aside, don't ever be denied
you gotta be who you be if you're comin' with me

okay??