We're not sure when these bands got big enough to sell out Bowery Ballroom yesterday and Music Hall tonight, but we're all about it. Local Natives' joyously slapdash cover of Simon & Garfunkel's "Cecilia" is enough to win us over; Fool's Gold makes undeniably vibrant Afro-Israeli pop; and the lovey-dovey, hippy-dippy music of Edward Sharpe and his band of ragtag commune dwellers translates into a wild, uplifting live show. Thank god for Craigslist.