War "Cinco de Mayo"; Free "All Right Now" (acapella); Deee-Lite "Groove is in the Heart" (acapella); Beyonce "Ring the Alarm" (acapella); Pitbull "Ay Chico" (acapella); Ween "Buenos Tardes Amigo".
As featured on Collected Mashups Vol. 4: Sleeper ( free album DL via "buy" link).