'American Idol' country fave Scotty McCreery went with 'I Cross My Heart' by George Strait, which appeared in the film 'Pure Country,' on tonight's episode, where the contestants performed songs from films. It's a ballad that plays to McCreery's strengths. He is showing us that his strength is not just his low, rumbling, Josh Turner-style croon. McCreery has range and he is giving us a glimpse of that range as he progresses each week.

With backup singers and a violinist accompanying him, McCreery looked and sounded every bit the veteran. McCreery has told us that he grew up impersonating Elvis Presley on his school bus and that practice served him well tonight, as his face was expressive and emotive.

"All of America has fallen in love with your voice and you've picked just the right song" was Steven Tyler's comment. While Jennifer Lopez didn't care for McCreery's song choice, she declared, "All I want to say is 'Wow.'" She also acknowledged how the public and show critics want the judges to be tougher this season, but that it's tough since the contestants are so damn good!

In his pre-performance mentoring session, Interscope's Jimmy Iovine told McCreery that he could sing the phone book and make it sound good. The label boss is right on with that assessment.

As the week's wind down, the possibility of Scotty McCreery taking the 'American Idol' crown seems like a distinct and very real possibility.

Watch Scotty McCreery Perform 'I Cross My Heart' on ' American Idol'