Tina Fey Raps on Childish Gambino Mixtape: Listen

Childish Gambino's latest mixtape has a star-studded hip-hop guest list -- and one surprising MC from the world of the rapper's day job.

"30 Rock" multi-hyphenate Tina Fey joins Gambino, AKA NBC colleague Donald Glover, to drop a verse on the "Royalty" mixtape's "Real Estate," adding a level of absurdity to the grimy track.

"This is the part where most people would say something crazy and drop the n-word after it," Fey raps. "Not going to, not gonna do that/I don't feel comfortable/I'm out!" The track also features more traditional appearances from Alley Boy and Swank.

Glover stars on NBC's "Community" when he's not composing rhymes. He's turned an increased attention to his music career in recent months, releasing full-length debut album "Camp" in November 2011. "Royalty," his third mixtape in three years, features notable appearances by Schoolboy Q, Bun B, RZA, Ghostface Killah and Beck, who co-produced the track "Silk Pillow."

Download the "Royalty" mixtape at Glover's website and hear "Real Estate" below: