Henry Lee Jackson (January 11, 1956 – November 11, 2014), known by his stage name, Big Bank Hank, was an American old school rapper and manager. Also known as Imp the Dimp, he was a member of the trio The Sugarhill Gang, the first hip hop act to have a hit with the cross-over single "Rapper's Delight" in the pop charts in 1979. He contributed to many documentaries based on the rap music industry.