In this new trailer showing off just one of the mixes in the newly-released Dance Party Mix pack for DJ Hero, we get to see the mashup of Lady Gaga’s ‘Pokerface’ and Duran Duran’s ‘Girls on Film’. The new DLC pack retails for 640 Microsoft Points and also features two new ‘beat juggles’ with Rhianna and The Pussycat Dolls.