The night will start with a soulful opening number to "T.S.O.P.(The Sound Of Philadelphia)" by MFSB featuring The ThreeDegrees, choreographed by Luam and featuring guest dancer and"Soul Train" alum Popin Pete of The Electric Boogaloos. Partnerdances to include the Rumba, Jive, Foxtrot, Viennese Waltzand Quickstep. For the first time this season, judge DerekHough will provide his expert insights, tips and tricks duringa master class centered around the classic hit "Get Down On It"by Kool & the Gang.