The xx celebrated Valentine's Day with this touching, vulnerable cover of Beyoncé's 4 single "I Miss You" in Austin. The British group was recently in town as part of Austin City Limits Live, and Oliver Sim and Romy Madley Croft face off with minimal guitar and bass as they trade pleas for love. Beatsmith Jamie xx is absent from this delicate moment, which is probably for the best: love can get messy when a third is invited.