John Alexander Crawford (born May 31, 1983), professionally known as JonFX, is a music producer from St. Andrews, Jamaica. He has worked with dancehall and reggae artists Shabba Ranks, I Wayne, Vybz Kartel, Gyptian and Akon, as well as late rapper XXXTentacion. In June 2018, he was appointed as a governor on the board of the Florida Grammy Chapter.