Carly Rose Sonenclar's Parents accuse LeAnn Rimes

I really am fine with Tate Stevens winning, although I would've liked it if Carly won. Anyways, after the results, Carly's parents believed that LeAnn Rimes was trying to out-sing Carly during their duet. Carly's parents believed that this ruined Carly's chances of winning the competition.

To me it might have been Tate having more fans, but who knows? LeAnn explained that she was trying to help Carly because Carly was having some 'troubles' with the song. Also, LeAnn put her hair in Carly's face after the performance when they hugged.

Here's the performance

Did LeAnn ruin her chances? Did she out-sing Carly?