Listened to $$$ already? You’d wonder who XXXtentacion featured on the song, He’s Matt, A young rapper of relatively young age, How Old Is Matt Ox, His Mom, Height, Wiki & Total Net Worth, Read exclusive biography of the Overwhelming Rapper. MATT OX’S [KEY BIOGRAPHY] Birth Name Matthew Grau (M) Birth Date (Age) 14th December 2004 (14 […]