UpperGantEnt rapper Sinthro debuts the money hungry sounds of “Check Check” from the upcoming album, “U Wasn’t Wit Me In The Gym”. Sinthoro is from Brooklyn, NY. Started rapping as a kid with his brothers performing in multiple talent shows an won Apollo twice. The Cousin of elite boxer Zab Judah who formed a record label called Super Cartel. With the label, Sinthoro opened major boxing events with his performances across the Country. While flourishing in the music industry, he ran into a trouble with the law, did a state bid. Once home, the New Yorker created a number of mixtapes including “SinCity”, “Guilty of Sin”, “All the Way Thoro”…