Complex sentence: Jerkin'was popularized in 2009 by the New Boyz rap song "You're a Jerk" which went viral via their MySpace page before they had a manager or were signed to a record label.
Split into simpler sentences: Jerkin'was popularized in 2009 by the New Boyz rap song "You're a Jerk". This song went viral via their MySpace page before they had a manager or were signed to a record label.