Those who showed up at the 9:30 Club on Saturday night with any doubts about The Kooks’ talent were certainly persuaded, and maybe even wooed into super-fan territory. The four lads from Brighton played a pitch-perfect set that had all the classic elements of an epic rock show, including crowdsurfing and a young woman who threw her underwear up on stage. The Kooks have been on the fast track to superstardom since forming in 2004,…