“We were just having a conversation back stage – I’m not fucking with you – best Vegas show ever!” A sentiment expressed by Karen O, upon returning to the stage for the encore, leading out with “Zero”. I think many of the fans in attendance for the show were in agreement. Las Vegas seemed to be a well-suited city to host Yeah Yeah Yeahs Saturday night as they hit a handful of U.S. venues as well as headlining Coachella appearances supporting their fourth studio album, Mosquito, due out this week. Yeah Yeah Yeahs, fronted by Karen O, share much with Vegas… both exhibiting glitzy style, extroverted personality, edgy sensibility, and non-conformist attitudes. Atop the fourth floor of the Cosmopolitan, at their Boulevard Pool concert venue overlooking the Strip as well as other sights, such as the faux Eiffel Tower at the Paris resort, the band played through old and new material in the open air concert space, broadcast to the packed house as well as anyone down on the Strip who cared to watch on the giant video screen to the side of the stage. Blown up on the billboard-sized screen, Karen O put on his own waterworks show – taking large swigs of water and spitting it into the air – that rivaled anything that the stuffier Bellagio might offer with their famous water feature attraction outside of the hotel. Book ended by their two weekend Coachella appearances, I was thrilled to see the band do their thing away from the massive music festival, and based on the reaction of the audience at the Cosmo, I was not alone in those feelings.