Forget the Olympics Dream Team - this is an L.A. dream team. Kendrick Lamar and Bethany Cosentino of Best Coast performed on Lamar's track "No Makeup (Her Vice)" in Portland yesterday, courtesy of Vitamin Water and the FADER's Uncapped series. Cosentino hops onstage, hair in a messy bun and carrying a plastic cup, and proceeds to deliver the hook (originally Colin Munroe's) with much style. Could she have a second career as a professional hook singer? This might be the beginning of a beautiful friendship. Watch Kendrick Lamar and Cosentino's sweet duet below.