Nelly drops some fresh lines on his remix to 2 Chainz 'Feds Watching.'

In the new song the St Louis native addresses an incident that happened last year where his tour bus was raided and heroin and a loaded gun were found on board.

Nelly's new album M.O. is due out Sept. 30th and will feature Nicki Minaj, T.I., 2 Chainz, Nelly Furtardo, Trey Songz and More.