If the announcement video is any indication, Big Sean's new mixtape is going to be a serious, snake-filled affair.

The Detroit rapper hasn't delivered a mixtape since Finally Famous Vol. 3: BIG, back on August 31, 2010, and his last solo project was his Def Jam debut, Finally Famous, which hit stores last June. Now, as he preps his sophomore album and the G.O.O.D. Music collaboration, Cruel Summer is still on the way, the former XXL Freshman will be dropping a new mixtape, Detroit, on September 5.

Below, check out the black and white trailer where Sean kicks it in front of the lights and with a snake, backed by a beat from Young Chop.