Apart from killer mic skills and identities that run defiantly counter to established hip-hop conventions, these two don’t appear to have much in common. But Das Racist (pictured, everyone’s favorite multi-culti, trickster-hipster, not-joking/just-joking rap group) and Le1f (a flamboyantly gay electro-rap diva with strong connections to New York’s drag ball scene) go way back. To Wesleyan University, in fact, where Das Racist’s Himanshu Suri and Victor Vasquez met in a “Students of Color for Social Justice” dorm, and where Le1f — aka Khalif Diouf — produced the beat for the duo’s name-making hit/meme “Combination Pizza Hut and Taco Bell.” Four years and three full-lengths later, DR (who’ve been keeping busy with a steady stream of guest spots and solo mixtapes) issued Le1f’s debut Dark York mixtape via their Greedhead imprint: a soupy, intergalactic beatscape that feels simultaneously cartoonish and sinister. It also boasts the tremendously catchy “Wut,” whose one-note bari-sax snap beat and lightning tongue-waggling scream for “Combination”-level virality.

Mon., Oct. 8, 8:30 p.m., $15, with Safe, Lakutis, Union Transfer, 1026 Spring Garden St., 215-232-2100, utphilly.com.