Adult Swim's latest Singles Program is officially in full swing and that means we'll be getting new (and free!) music from the likes of Flying Lotus, Death Grips, and Com Truise, among others. One of those others is Portland, Ore.'s Unknown Mortal Orchestra, an outfit known for fusing psychedelic vibes into their take on guitar-driven pop. That's just what they bring on their entry to the program, "I'll Come Back 4 U," a romantic and slightly woozy slab of goodness. You can stream/download it below.