In which commercial mixtape  by Gucci Manethe, Keith Cozar had a guest appearance?
Trap House III: Trap House III is a commercial mixtape by American rapper Gucci Mane. Trap House III:  The project features guest appearances from Rick Ross, Rich Homie Quan, Wiz Khalifa, Shawty Lo, Young Scooter, Young Thug and Chief Keef among others. Chief Keef: Keith Cozart (born August 15, 1995), better known by his stage name Chief Keef, is an American rapper and record producer from Chicago, Illinois.
Trap House III