When you’re an artist trying to make it in the game, everybody has an opinion on how you should conduct your hustle. On new mixtape single Um, Excuse Me, released along with its Eric Guerrero-directed visuals, Gerald Walker sends a loud and clear message to anyone who might have an opinion to share: save your breath. DJ Mr. Rogers produces, crating a low-key synth instrumental to back the Milwaukee spitter’s verses. Believers Never Die is scheduled for digital release next Tuesday, April 16. In the meantime, fans can still download 2011 projects The Other Half of Letting Go and It’s Christmastime Again, Gerald Walker, for free in the Booth.