Yo! Yo! Yo!

This is no April Fool's joke.

So not to get all promo on you, but all this month, MTV is celebrating the 20th Anniversary of the greatest thing this channel has ever done: Yo! MTV Raps. All apologies to "The Hills." You'll be seeing various moments from the show's seven-year run - videos, freestyles, funny bits from Ed & Dre and Fab 5 Freddy, etc - all across the MTV universe, whether you watch MTV, MTV2, MTV Jams, read any of the websites or if you just read this blog. Keep your eyes peeled.Below is a montage of some of the freestyles that have appeared in the show's history. The first person to name all the rappers gets a prize. For reals. Come on, Internet - get crackin'.

You can see more all month at yo.mtv.com