This week's Zeitgeist is so big, it's divided into two separate (and separtely ticketed) shows. Arrive early for a DJ set from Brooklyn-based, Trinidadian-born neo-soul hip-popper Theophilus London. Then stick around for some uptown funk in a downtown setting from Bruno Mars's No. 1 party buddy, Grammy-nominated producer Mark Ronson (Amy Winehouse, Adele, Duran Duran). Late support comes from ex–Night Person Blu Jemz.