Mr. Lif is back with an awesome track from his upcoming new solo album “Don’t Look Down” (out April 15th on Mello Music Group). It’s Lif’s first album in seven years, a chronicle of personal evolution, internal strength, and the ebbs and flows of life. It’s the most introspective and harrowingly personal work from the ex-Def Jux legend — a record borne from successes, failures, and hard-learned lessons…