Before he was pop culture rapper extraordinaire (as well as Troy on NBC's Community), Donald Glover was a member of the writing staff for screwball comedy 30 Rock. Well it seems he's kept in touch with his former comrades, including none other than Liz Lemon herself, Tina Fey. On Glover's recently-released mix-tape entitled Royalty (which you can grab for free here), Fey appears on "Real Estate," the last track of the release. Check out the video below for Fey's contribution (skip to the 4:50 mark to get to it faster), and download Gambino's release in its entirety on his official site.