1st Digital Release Under Big Duke Ent.. Reginald Harris is the CEO and Founder of Big Duke Ent. He got the name Big Duke from his brother who was killed in 2000. Big Duke Ent started in 2001 with MacMont and 2 of a kind. Shortly after he met TreeDogg, founder of YGR records, and started the ATM around 2010. In the year of 2012 the ATM Circle was established from the different groups of the ATM. "No Understanding" hit the streets of Little Rock in 2013. Reginald Harris is also founder of "All this killing gotta stop" campaign. He resides in Little Rock,AR