Best Coast "Each and Every Day" (live on Letterman)

Best Coast 'Each and Every Day' (live on <i>Letterman</i>)
Last night (January 31), Bethany Cosentino took her Best Coast to Late Show with David Letterman, where she broke out a tune and, as you can see from the photo above, got a chance to get up close and personal with a certain mega-famous mophead.

Cosentino played "Each and Every Day," off last year's much-loved Crazy for You. And for that celebrity encounter, yep, that's Justin Bieber. Via Twitter, Cosentino shared the snapshot, simply stating, "check out my prom date." Unfortunately, the Beebs didn't join Best Coast onstage, but, you know, never say never.