Alternative, art-punk darlings Yeah Yeah Yeahs are one of the most revered outfits in the indie-sphere. Capable of reinventing their sound and glossing up their aesthetic without being seen as sellouts, posers, or a band on the decline, Karen O. and crew command the kind of creative respect that causes their audience to treat their stylistic shifts as new adventures rather than betrayals. Mosquito, the group’s effervescent and quirky fourth album, picks up where the bombastic and snarly pop of 2009’s It’s Blitz left off. With only one clear misstep (the admirably adventurous but ultimately fairly disastrous rap-infusion “Buried Alive”), Mosquito is an album of bright, frenetic pop songs that vary pleasantly in tempo and showcase the group as a band intent on exploring and exploiting musical genres and poses. With standouts like the gorgeously soulful stomper and first single “Sacrilege,” the deliciously crunchy “Area 52,” and the driving arena-rocker “Under the Earth,” perhaps the Yeah Yeah Yeahs are finally poised to win that Best Alternative Album Grammy which they’ve been merely nominated for three albums running.