Be it the early '00s dance punk of the Rapture or the current disco of Hercules & Love Affair, DFA Records has proven to be the city's undisputed dance-music trendsetter. For today's special disco version of P.S.1's Warm Up series, label founder and LCD Soundsystem frontman James Murphy joins bandmate Pat Mahoney for a set of post-punk and funk that's sure to make it feel like 1979 all over again. Also on tap: sets by DFA newbie Liv Spencer (Still Going) and no-wave legend Ikue Mori.