James Scheffer (born June 8, 1970), professionally known as Jim Jonsin, is an American DJ, music producer, songwriter, and businessman from South Florida. Jonsin has collaborated with numerous elite hip hop, pop, R&B and rock artists, including Beyoncé, Kelly Rowland, Usher, Lil Wayne, Kid Cudi, Eminem, Yelawolf, Nelly, T.I., Danity Kane and Jamie Foxx, among others. Jonsin won a Grammy in 2009, for Best Rap Song for Lil Wayne's "Lollipop". That year he was also nominated for his production on T.I.'s "Whatever You Like", which also garnered a nomination for Best Rap Song.