Nicki Minaj and Tekashi 6ix9ine Team Up on 'Trollz' Track

Nicki Minaj is going back to the well for what could be her next big hit -- snitching be damned, she's got a new collar with Tekashi 6ix9ine. The 2 rappers just revealed they worked together on a track called "Trollz," which Nicki says will be…