In 1990 DJ Stretch Armstrong and Bobitto Garcia debuted their college radio show on Columbia University's WKCR (89.9FM) in NYC and left an indelible mark on the culture. The show, which ran until 1998, helped launch the careers of many of hip-hop’s biggest stars—including The Notorious B.I.G., Jay-Z, Nas, Big Pun, the Wu-Tang Clan, DMX, Cam’ron, Mobb Deep, Big L and Fat Joe, among others.

Listeners used to tune in to hear rare cuts, b-sides and remixes to some of their favorite songs, as well as interviews and live freestyles. Tomorrow, (early Friday morning on October 22) from 1 a.m. to 5 a.m. Stretch and Bob will return to WKCR to broadcast a special anniversary show. (Fans outside of NYC can log on to WKCR's website to hear a live stream).

We here at XXL are pretty excited by the news so to celebrate Stretch and Bobbito's 20-year anniversary we've compiled 20 of the show's more memorable freestyles. Yes, yes y'all! —Rob Markman