Pedro Antonio Rojas, Jr. (born December 14, 1976), better known by his stage name Tonedeff, is an American rapper, producer, singer-songwriter and record executive. Tonedeff first gained national recognition on the underground hip hop scene after winning a string of distinguished rap battles (i.e. "Braggin Rites"), opening shows for Common, Rahzel, The Beatnuts, Royce da 5'9", and Brand Nubian. He also appeared as a guest artist on several 12" releases, including the controversial KRS-One diss track "Clear Em Out" criticizing Nelly.