Flex (Drop 40) feat. Dee 1 is the 4th track on Heavy is the Head, an album from Thi'sl. It was released on Aug. 14, 2015 along with 16 other tracks. A few more of the best tracks are The Come Up, Pull Up (Beating), It's All Good feat. Ashthon Jones, Yesterday feat. Scarface and Theresa Payne, The Delay, Cadillac Riding feat. Bhird, and Brother performed by Courtney Orlando.