Yesterday we reported that LeAnn Rimes had checked into rehab for stress. There appears to be much more to this story.

Apparently there’s a group of haters on Twitter who are on Team Brandi Glanville (aka Eddie Cibrian‘s ex-wife) and they have been relentlessly harassing LeAnn.

In lieu of ignoring them, LeAnn chose to confront them — over the phone!

Kimberly Smiley and Lexi Smiley secretly taped the conversation and then published it on the internet.

[LISTEN TO THE AUDIO HERE]

Adding more stress to the situation, LeAnn has filed lawsuit against the two hecklers for invasion of privacy.

[SEE DOCS HERE]

In the tape, you can clearly hear LeAnn bash Brandi — but in the lawsuit, LeAnn claims that Kimberly and Lexi edited the tape to make her look bad.

This should get interesting.