We were first introduced to Rafa Alvarez — aka Different Sleep — by Jerome LOL when he took over the site a couple years back. On his skittering new single, the Chicago-based producer teams up with regular Jerome LOL collaborator (and member of Different Sleep's Friends of Friends labelmates IDYLL) Angelina Lucero, whose hauntingly otherworldly vocals take everything they touch to another level, adding a mysterious vibe and a heavy emotional layer to an already transfixing track. Different Sleep's stellar Last Nerve EP is out in March on Friends of Friends; listen to "Lost Profit" below + pick up the single now here: