Everyone loves a good Tiny Desk Concert. Iron & Wine frontman, Sam Beam, seems to love performing behind the desk more than he loves watching the series. Beam has played the iconic venue (can a desk be a venue? We think so…) once as Iron & Wine and another alongside Jesca Hoop. For Beam’s third appearance, he is joined by Joey Burns and John Convertino, otherwise known as Calexico. Iron & Wine and Calexico just released their second collaborative album, Years to Burn, in June. The folk-rock supergroup’s Tiny Desk Concert offers fans a glimpse into what they can expect from their September 20th show at Union Transfer.