Jamie Foxx, Quentin Tarantino, Tyler Perry and Laz Alonzo are to be presenters at the BET Awards this weekend in Los Angeles, the network said. Previously announced presenters include Kevin Hart, Cedric the Entertainer, Taraji P. Henson and Meagan Good. Samuel L. Jackson is to serve as the host of Sunday's event at the Shrine Auditorium. Performing at the ceremony will be D'Angelo, Usher, Chris Brown, Nicki Minaj, Rick Ross, Wale, Meek Mill, 2 Chainz, Big Sean and G.O.O.D. Music.