RAP PIONEER BIG BANK HANK OF THE SUGARHILL GANG, DIES AT 57!

Big Bank Hank – the Sugarhill Gang rapper best know as “the grandmaster with 3 MCs that shock the house for the young ladies” — died early Tuesday morning … TMZ has learned.

Hank — born Henry Jackson — had been suffering from cancer. We’re told he passed away in the greater NYC area around 2 AM. Hank was one third of the famous Sugarhill Gang … which had the first mainstream rap hit “Rappers Delight” in 1979.

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Sugarhill Gang

His group mates Wonder Mike and Master Gee told TMZ … “So sad to hear of our brother’s passing. Rest in peace Big Bank.”

Hank was 57 years old.