Wal-Mart is launching a new fashion line with teen star Miley Cyrus and BCBG designer Max Azria for the critical back-to-school shopping season.

The exclusive collection will be called Miley Cyrus & Max Azria. About 90 percent of the clothing and accessories will sell for $12 or less.

The rock music-inspired line debuts in all stores in August. It will be part of a triad of Wal-Mart-exclusive collections aimed at teens. The denim-based L.E.I. brand and surf-inspired Op also produce lines just for Wal-Mart.

The discounter has been one of few bright spots in the retailing sector as the economy soured. Wal-Mart has maintained that it's rapidly taking market share away from rivals as shoppers look to cut costs.