MARIAH, NELLY, NAS TO SING FOR SAMSUNG: Artists to perform at second annual free concert series

Mariah Carey, Nelly and Nas are among the artists tapped to perform as part of the second annual Samsung AT&T Summer Krush, a free summer concert series designed to highlight Samsung's music-centric BlackJack II mobile phone.

The concert series kicks off July 31 in Los Angeles with an approximately 35-minute performance by Carey at the Hollywood & Highland Center. Portions of the concert will broadcast later that evening on ABC's "Jimmy Kimmel Live!"

Rapper Nelly is scheduled to perform Aug. 19 at the Tabernacle in Atlanta, while Nas will perform at Webster Hall in New York on Aug. 27.

Other artists on the bill include Gavin Rossdale and LeAnn Rimes. A limited number of free tickets will be available through radio promotions, artist fan clubs, street teams and online registration at www.samsungsummerkrush.com