On Thursday March 28th, CBC Radio's Q did a special live show in New York City. Vampire Weekend kicked things off with this performance of "Diane Young":
It's a fun song, and Ezra Koenig does a nice job on vocals. It must be mentioned that Rostam Batmanglij's guitar sounds off. Not sure if this is a punk indie rock musical choice or if it's just an off performance. The guitar sounds out of tune and there's some issues with timing. It's often hard for bands to play in live radio / tv settings, so we'll give him the benefit of the doubt.
Source: Q TV Official Youtube Channel