Pedro Antonio Rojas, Jr., better known by his stage name Tonedeff, is an American rapper, producer and singer-songwriter from Queens, New York City. Known for his breathless vocal performances, rapid-fire delivery, which is alleged to be among the fastest in hip hop history, is said by critics as having "the best flows" of the current generation of emcees. Having developed a reputation as a self-sufficient artist who has been known to design his own album covers and edit his own videos, he is also known to sing and play piano on his tracks, as well as self-produce them. Tonedeff first gained national recognition on the underground hip hop scene after winning a string of distinguished rap battles, 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. He has appeared on most of the Cunninlynguists albums, including Will Rap For Food, SouthernUnderground, A Piece of Strange, Strange Journey Volume One and Oneirology. He appeared on Immortal Technique's "Peruvian Cocaine", playing the role of an American drug distributor in an elaborate drug trade conspiracy. He has also provided comedic skits for artists such as Masta Ace and Pumpkinhead.