i used:
Mike Posner - I Took A Pill In Ibiza (Instrumental Remix)
Lady Gaga - Love Game (Acappella)
Martin Solveig & Cataracs - Hey Now (feat Kyle) Acapella
Jess Glynne - All I Am [Acapella]
Example - Changed The Way You Kiss Me (Acapella)
Queen Under Pressure (A-Capella)