Matt OX

Matthew Grau (born December 13, 2004), known professionally as Matt Ox, is an American rapper and singer from Philadelphia. He is best known for his single "Overwhelming" (2017), which has since reached nearly 30 million views on YouTube, and for his feature on "$$$" with XXXTentacion released in March 2018, which has achieved more than 100 million plays on Spotify. His debut album, OX, came out in October 2018.