(Cover) - EN Showbiz - The ex-wife of LeAnn Rimes' husband once got so angry with the singer she thought she "was going to kill her".

Brandi Glanville was married to Eddie Cibrian for eight years before they separated in 2009. He went public with his romance with his now-wife LeAnn shortly afterwards, although their relationship started when they were both married.

Brandi and Eddie have two sons and she admits seeing LeAnn with her children was hard at first.

"I remember walking up to soccer practice and there she was with my baby in her lap," Brandi told Australia's NW HQ magazine.

"My blood was boiling, and I thought I was going to kill her. I really thought I was going to physically hurt her.

"But that was the first time I saw her that way - she was sitting in my soccer chair, under my tent, she's got my kid on her lap and she's with my husband, and that was that little moment of total irrational fury."

Although the two women aren't close, they now get along for the sake of the kids. Brandi is pleased that the country singer makes so much effort with her children.

"We're never going to be best friends, but she's good to my kids, they love her and that's all I could ask for," she explained. "If they didn't like her, I'd be in court right now, fighting. It's not about me - it's about them."

Brandi appears on US reality TV show The Real Housewives of Beverly Hills. (C) Cover Media