Wonder is scheduled to be joined by Alicia Keys [ tickets ], Angela Winbush, Angie Stone, Doug E Fresh, George Duke, Joss Stone, Kim Burrell, L. D. Miller, Raphael Saadiq, Ziggy Marley and surprise guests, all under the musical direction of Rickey Minor.

Dave Chappelle will host; tickets are on sale now. Concert-goers are asked to donate an unwrapped gift before entering the concert.

"The Molo Sessions," an album Pearl Jam [ tickets ] frontman Eddie Vedder recorded with a South African high school choir, will be sold through Pearl Jam's website beginning on Dec. 15. Sales will benefit Molo Care, a Seattle non-profit that raises money for schools in Port Elizabeth, South Africa.

Meanwhile, the band's annual fan-club single, a cover of "Someday at Christmas" (popularized by The Jackson 5), will be released on Dec. 20.

The fourth annual Bonnaroo [ tickets ] Music and Arts Festival is scheduled to take place June 10-12 at the same 700-acre farm in Manchester, TN, that hosted the previous festivals, organizers announced on Tuesday (12/7). The lineup of acts for the music/camping event hasn't been unveiled.

Black Label Society [ tickets ], featuring Ozzy Osbourne guitarist Zakk Wylde, has signed a multi-album contract with Artemis Records. An album of all-new material titled "Mafia" is due in stores on March 8, according to the label.