Glenn Vaughn Mack Jr., better known by his stage name Stackz Mack, is an American independent rap artist from Austin, Tx. He is best known for his featured verse on 2010 song, "Stack It Up" which was on Yung X.O's RNS Vol. 2. He is a original member of Grind Hogg Gang. Stackz is known for making trap music which is based upon his upbringing in life. March 2016, he dropped his first mixtape (SBSM) Shoe Box Stash Money. Which will include bangers like "Stickin 2 The Basics" , "I Want The Money" ,"UWU" , and "Texas Boyz" just to name a few. He also dropped a independent mix-album titled (FCFS) "First Come First Served" which will include "F**king Up The Scale" as the first single. The mix-album was released August 19, 2016. He released another mix-album titled (SOD) "Supplies On Demand" that drop this June 2018. Growing up Stackz listen to 2 Pac, Biggie, Geto Boys, UGK, SUC, Master P, and the Hot Boy$. Stackz first began rapping in 2003, when he started freestyling at local studio's. In 2006 and 2009 he was incarcerated. Stackz would be released in 2010 and immediately go back to recording music. He's passionate and dedicated about his craft. Watch this artist transition into one of hip-hop biggest artist.