In stores today, "Authentic" includes performances by Van Halen on "We're The Greatest" and "Not Leaving You Tonight" and fans can preview both tracks online.

"The thought of me playing guitar to hip hop was definitely left of center, but I was intrigued and I agreed to meet and listen to what he had," Eddie told Guitar World recently. "I was not only inspired by the songs I heard, but LL's enthusiasm, his down-to-earth personality, the freedom he gave me to co-create and his willingness to, for the very first time, sing the chorus on 'We're the Greatest.' It was like a breath of fresh air that I needed as an artist and an individual."