Three long years since Kelis' last full-length, Kelis Was Here, the diva leaks a new club track, "Acapella," produced by French DJ du jour, David Guetta. The trance-infused stomper will accompany other collaborations with Burnz, DJ Ammo, Boys Noize, Diplo/Switch & Free School on her eponymous 2010 album. This digital DJ promo also includes the tasty instrumental version.