By Sarah Muller and Christopher “CJ” Smith Live chickens seem more fit for a farm than a concert. An old man on rollerblades doesn’t exactly scream rock and roll either. But Sunday’s Jelly NYC Pool Party was all about the punk-rock spectacle . That’s no surprise though. We’re dealing with the triple-threat rabble-rousing crew of the Black Lips , Deerhunter Deerhunter and King Khan And The Shrines — three bands that are known as much for their onstage antics as their various blends of punk. But this time, they turned a party designed for a loft or a basement into a giant outdoor party — complete with audience-participation food fights, an onstage toilet-paper smackdown and plenty of cringe-worthy “did they REALLY just do that?” moments. The Montreal/ ATL-based bands are bestest friends. But if you ask them, they’re more like family. Sort of. There’s no sibling rivalry here. The performers shared the spotlight with each other throughout the course of the afternoon, and said they’re going to officially work together soon. “We would like to officially announce a band that we’ve started called Butt Flower,” King Khan half-jokingly told MTV News, adding that the project consists of the Black Lips’ Cole Alexander, Deerhunter’s Bradford Cox and himself. With Cox and Khan getting together for an impromptu set at the Pitchfork Music Festival last month — AND Cox and Alexander releasing music as Ghetto Cross — the trio seems closer than ever ...