I don't look at Peter Piper as being a B-boy track. But it is an awesome classic, though.

Here you go:

What People Do For Money - Divine Sounds
Go See the Doctor - Kool Moe Dee
Radio - LL Cool J
Super Rappin - Grandmaster Flash and the Furious Five
Jailhouse Rap - The Fat Boys
Stick 'Em - The Fat Boys
Sucker MC's - Run DMC
It's Like That - Run DMC
Hard Times - Run DMC
Krush Groove - Run DMC, Sheila E.,
Showstopper - Salt-n-Pepa
King Kut - Word of Mouth and DJ Cheese
8 Million Stories - Kurtis BLow
The Breaks - Kurtis Blow
Roxanne Roxanne - UTFO
Buckwheat's Beat - Spyder D
Jam On It - Newcleus

Just a few of the many. Later, QD.