LeAnn Rimes has responded to being called "insane".

The singer's mental security was put under question recently by Brandi Glanville - the ex-wife of Rimes' current husband Eddie Cibrian, who married the star in 2011.

Speaking to Jimmy Kimmel on Tuesday (January 22), the singer said that she is getting fed up of the taunts and abuse, revealing:

"I think it's kind of interesting how it seems one-sided most of the time. But then, you know, you just kinda get fed up with people lying about you and you're like...words, here."

She added: "I usually don't engage, but there comes a time when you're just like, 'Screw you'. That's it, and that's all you wanna say and you're like, 'I'm done with this now, for like another three months'."

As previously reported, Rimes recently spoke out against online bullying, admitting that Twitter abuse had a strong effect on her.