Arkansas songwriter and car enthusiast Sam Sparks found solace in music after breaking his back in a terrible accident. He played through his pain in the hospital parking lot, and now he's here singing his original song ''Colorado Gray'' for Lionel, Luke and Carrie. Sam's favorite things in life are going fast and being loud, and he still gets to do those things today - this time, on American Idol. Catch an all-new episode this Sunday on ABC, or stream on Hulu!