Joe Penna known online as MysteryGuitarMan is a Brazilian guitarist, animator, and filmmaker. Penna maintains the YouTube channel, MysteryGuitarMan. He is a member of The Big Frame Network and participates in the network's BAMMO channel. In January 2011 he was the most subscribed to You Tuber in Brazil. As of August 2013 his channel has over 2.8 million subscriber. In Feburary 2010 Penna started a second You Tube channel named jp where he uploads his making of videos and vlogs, within six hours it became the third most subscribed to channel in Brazil.