The kid killed it, so much passion and he's only 15 years old: http://www.youtube.com/watch?v=bx9c5dFvjPQ
Did Astro have to get Eminem’s permission to perform the hit “Lose Yourself?”In a word, yes, especially because the 14-year-old Brooklynite was also messing with the lyrics. “It's the first time he ever let anybody on a show sing and remix his song,” said Astro. “L.A. [Reid] called Eminen’s manager who told us yes.” As it turns out, the Grammy-winning rapper has been keeping an eye on the future star. “The manager said that [Eminem]’s been watching me and enjoys that I'm doing rap on the show. That was awesome.”
http://www.hollywoodreporter.com/live-f ... got-260141