Schumer is no amateur when it comes to impromptu musical performances, but her latest outing in the Windy City might take the cake as the best one yet. She and Talib Kweli did a joint-headlining show at Chicago’s Constellation venue last night (Schumer for her rapid-fire rhymes, and Kweli for his raunchy stand-up act, we’re assuming), and at one point during Kweli’s performance, Schumer took the stage to rap the female lines of the Kanye West–Kweli-Common collaboration “Get Em High†and boogie down. Training hard for those upcoming Madonnna opening acts, we see.