Janet Jackson, Usher, Sean "P. Diddy" Combs, and Alicia Keys are among the artists who will either be performing or presenting during Tuesday's (June 25) second annual BET Awards. Organizers of the ev

Janet Jackson, Usher, Sean "P. Diddy" Combs, and Alicia Keys are among the artists who will either be performing or presenting during Tuesday's (June 25) second annual BET Awards. Organizers of the event -- which will be broadcast live from Los Angeles' Kodak Theatre beginning at 9 p.m. ET on the cable channel (and rebroadcast at 9 p.m. PT) -- are keeping specific plans under wraps until show time.

Other artists who will be taking part in the show include Yolanda Adams, Ashanti, Nelly, Ludacris, B2K, Will Smith, Mary J. Blige, Bow Wow, Ja Rule, Mystikal, Angie Stone, A.J. & Free, LL Cool J, and Jill Scott.

"We've assembled a platinum talent roster for the BET Awards, representing the brightest stars in today's hip-hop, gospel, and R&B arenas," show producer John Cossette said in a statement. "BET is pulling out all the stops to give viewers a show that will keep them on the edge of their seats."

Also confirmed to appear is actress Vivica A. Fox ("Kingdom Come"), actor Eddie Griffin ("Undercover Brother"), actor Morris Chestnut ("Like Mike"), boxer Laila Ali, actress Gabrielle Union ("Love & Basketball"), actor Gary Dourdan ("Dancing in September"), actor/comedian Jamie Foxx ("Ali"), "Survivor: Marquesas" winner Vecepia Towery, and noted attorney Johnnie Cochran.

The BET Awards bestow honors in the fields of music, television, film, and sports. As previously reported, late singer/actress Aaliyah leads the field for the second annual BET Awards with a total of four nominations -- best female R&B artist, best video and the viewer's choice for the single "Rock the Boat," as well as best actress for her role in "Queen of the Damned."

Earth, Wind & Fire will receive the Lifetime Achievement Award and is the only act confirmed to perform. Boxing great Muhammad Ali will receive the Humanitarian Award for his continuing activism.