According to sources who are LeAnn Rimes, LeAnn Rimes was completely sober Wednesday night when singing a duet with 13-year-old Carly Rose Soneclar on the X-Factor. The source goes on to say that the problem, even there even was one (the source is skeptical), was that LeAnn was too thoughtful and considerate to out-sing the little kid. Which is totally a LeAnn Rimes thing to do. She's LeAnn "what can I do to help others today" Rimes.
Soneclars mother is livid that Rimes would dare say Carly Rose was "nervous and had trouble hitting the right notes." (Rimes says she was sober) but says if things were awkward, it was only because, "I was trying to help this 13-year-old girl who was having some trouble with the song."
Another possibility is that neither one of them can sing for shit, so let's not rule that one out just yet.