Junior Vasquez is an American DJ, record producer, songwriter, and remixer born Donald Paul Mattern on August 24, 1949, in Lancaster, Pennsylvania. He began his career as a resident DJ at the Sound Factory in New York City, and later performed at venues including Tunnel, Arena at the Palladium, Twilo, and Exit. In 1990, he contributed to Prince’s album Graffiti Bridge. Vasquez launched his radio show Junior's World on KTU in 2003 and produced remixes for artists including Elton John, The Pretenders, and Cyndi Lauper. Under the pseudonym Ellis-D, he released studio albums including Free Your Mind (1989), Free Your Soul (2006), and Divas (2007), as well as his album Junior's Magic Orchestra (2001) and the compilation Generation Next (2009). His singles include “X” (1994), “Get Your Hands off My Man!” (1994), which reached number 22 on the UK Singles Chart upon its 1995 reissue, “Lift Me Up” (1995), and “If Madonna Calls” (1996), which peaked at number 24 on the UK Singles Chart.