Alicia Keys, the Black Eyed Peas, Mary J. Blige, Joss Stone, and more chipped in to help raise money and awareness for HIV/AIDS on Wednesday’s “Idol Gives Back” telethon. Mary rocked out to Led Zeppelin’s “Stairway to Heaven” with an all-star band including Travis Barker, Randy Jackson, and Orianthi. Alicia performed “Un-thinkable” and “Empire State […]