In case anybody was on the verge of nodding off during last night’s Late Show with David Letterman, Will Butler no doubt woke them up real quick with a super-energetic rendition of his Policy anthem “Take My Side.” The Arcade Fire member’s performance was so on-point, in fact, that it prompted an “Oh my! How about that?” from Letterman, whom you know only reserves end-of-show exclamations for the true greats (see also: Future Islands). Watch above.