Mariah Carey, Gavin Rossdale, LeAnn Rimes, Nelly and Nas, among others, will 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 launches 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!" Carey is currently promoting her latest album, "E=MC2," which debuted at No. 1 on The Billboard 200 in April.

Samsung AT&T Summer Krush continues Aug. 7 with a performance by former Bush frontman Rossdale at the Showbox in Seattle, followed by an Aug. 13 appearance by Rimes at Gilley's in Dallas. Rapper Nelly is scheduled to perform Aug. 19 at the Tabernacle in Atlanta, while Nas will appear at New York’s Webster Hall on Aug. 27.

The concert event continues to visit 1,000- to 2,000-capacity venues through mid-September with three additional artists, who will be announced shortly. Each show will feature music by Los Angeles-based DJ Matthew Sullivan.

A limited number of free tickets for the concerts will be available through radio promotions, artist fan clubs, street teams and online registration at

Along with hour-long live music performances, Samsung BlackJack II mobile phones will be on display in each city. During the shows, concertgoers will have the opportunity to learn about the phone and its music capabilities, according to the company.

The Samsung AT&T Summer Krush launched last summer with performances by Ludacris, the Bravery, Kinky, Big & Rich, the All-American Rejects and Plain White T's. Last March, the mobile company announced another free concert series, Samsung Sound Check, which featured appearances Ne-Yo, Jimmy Eat World, Gym Class Heroes, Paramore and Sean Kingston.