The Strokes, Saturday's headliner, were a crowd-pleaser, playing pretty much the entirety of their 2001 opus Is This It. The group, who has been on an unofficial hiatus for the last few years, is slated to release a new album in 2011. Julian Casablancas reminded us why we like these guys so much, sending off the Outside Lands crowd in search of cabs and N trains to a pitch-perfect rendition of "Last Night."