For the first performance of the new Idol season Mary J. Blige, whom was also a mentor for the top 13 this week, took to the stage Thursday night, during the results song for the first televised performance of her next single, the Rick Ross assisted “Why,” off her latest album My Life II…The Journey Continues. MJB delivered a rousing performance, receiving a standing ovation from judges Randy Jackson, Jennifer Lopez and Steven Tyler. Check out Mary’s performance below…