Whoa, what a concert amongst the elephants. Based in south London, Disclosure are the scarily young Lawrence brothers, Guy and Howard. They've been making forward-thinking dance music since 2010 but made a big breakout dent with their garage/house remix of Jessie Ware's "Running," and have since stepped it up with a series of big singles featuring Sam Smith, AlunaGeorge and Eliza Doolittle. Get ready for hands in the air and feet on the dancefloor—er, zoo floor—as they play from their critically adored debut album Settle. 18-year-old Brooklyn native Joey Bada$$, who—along with breakthrough stars Kendrick Lamar and Ab-Soul, and lesser-knowns such as Wiki, Chance the Rapper, Tsu Surf and Jarren Benton—boasts a devotion to crafty verses rivaling the rigorous study of classic jazz. House music classicist Green Velvet opens.