Country songstress LeAnn Rimes insists she wasn't drunk when she took to The X Factor stage on Wednesday night, contrary to speculation.

The star performed a rendition of her hit 'How Do I Live?' alongside finalist Carly Rose Sonenclar on last night's show, and after her somewhat awkward turn on the stage Rimes was hit by claims that she was intoxicated.

Rimes - who was admitted to rehab for exhaustion and stress earlier this year - insists she wasn't under the influence on the hit TV talent show, telling TMZ: "I was trying to help this 13-year-old girl who was having some trouble with the song."

The star's lawyer, Larry Stein, confirmed that his client was helping out the naive performer, 13, adding: "LeAnn was not performing the way she would normally perform, because she was on stage with a young girl. There have been a lot of untrue things said by others and it feeds into this sort of thing."

Rimes has been embroiled in a public war of words with her husband Eddie Cibrian’s ex-wife Brandi Glanville of late.

The blonde star - who famously had an affair with her now partner - has been labelled “unstable” by Glanville.