History: Function Music is a collaborative studio album by American rappers E-40 and Too Short. The album was released on November 6, 2012, by Heavy on the Grind Entertainment and EMI. The album was released in two pairs: History: Mob Music and History: Function Music. The album features guest appearances from Tyga, Travis Porter, Turf Talk, Wiz Khalifa, Sugafree, Jeremih, and Ice Cube among others.