Laura MusselmanWho: WeezerWhen: 9:15Where: MainstageYou guys, I had a fucking blast at Weezer tonight, and I haven’t even listened to their last three albums or seen them in concert since I was 17. After the rest of his band warmed up their first song, “Hash Pipe,” Rivers Cuomo made a diva-like entrance all on his own in a very Rivers-esque outfit of pink collar, striped sweater, and hooded anorak. Cuomo started off the set air-guitaring and kicking over his mic stand; two songs in he was already grabbing his crotch and climbing off the stage onto the scaffolding (this was a trend for the rest of the show; many songs were performed by the disembodied voice of Cuomo, who would disappear and moments later pop up somewhere by the bleachers or dancing on top of an amp). Harvard education aside, Cuomo is a spastic little boy on stage — need proof? Check him strumming his guitar with a rubber chicken during “El Scorcho” or throwing rolls of toilet paper at the crowd during “My Name Is Jonas” — and it’s really a ton of fun to watch. Even my least favorite Weezer song, “Island In The Sun,” gained some charm from the giant beach balls that bounced around the audience while it was played.The haphazard set included Maladroit’s “Dope Nose” and the new single “Memories,” but Weezer knows how to make their fans happy — after promising to bring the audience back to 1994, the band played a good, classic selection off the beloved Blue album, including “Undone,” “Surf Wax America,” and “Say It Ain’t So,” and even closed with “Buddy Holly.” They all sound as rocking and anthemic and important and sentimental as they did when you were 14. I saw the more recent songs I don’t know, like “Beverly Hills” and “Pork and Beans,” as opportunities to catch my breath and take a break from rocking and singing along. Ultimately, no matter what your opinion on the caliber and tastefulness of Weezer’s latest records, they put on a brilliant, thrillingly active live show. Case in point — you bitchers who say you walked on Bob Dylan last night, if he’d slapped on a blonde wig and performed a mashup of MGMT and Lady Gaga, would you have left then? I didn’t think so.More photos after the jump.