Atlanta, GA -- A newly-released YouTube video shows Atlantan emcees

B.o.B.

and

T.I.

joining forces in the studio to work on B.o.B.'s next full-length, coming in early 2009.

T.I.P. fans probably don't need to be reminded that the

Grand Hustle

co-CEO's sixth album,

Paper Trail

, drops September 30th.