Rihanna and the Style Network will be teaming to present "Styled to Rock", the cable network's first competition show, debuting next year. After a nationwide search, the pop star will personally select a dozen designers looking to "take their work to the next level," the network said Wednesday in a statement, and then give them a chance to dress "some of the biggest names in entertainment," none of whom were named. Riri will also get an assist from three expert mentor-types who'll work with the competitors — and then help cull the herd over the course of 10 hour-long episodes. Challenges involve styling various stars, with each week's celeb picking one designer who did the best work and should advance to the next round. The mentors will meet with the rest of the gang to decide who goes home during the show's 12-week run. (Source: Style Network)