LeAnn Rimes is seeking help to address emotional issues.
"LeAnn has voluntarily entered a 30 day in-patient treatment facility to cope with anxiety and stress," her rep Marcel Pariseau tells PEOPLE in an exclusive statement.
"While there will be speculation regarding her treatment, she is simply there to learn and develop coping mechanisms. While privacy isn't expected, it's certainly appreciated."
Rimes – who checked in on Wednesday, the day after her 30th birthday – tells PEOPLE she hopes to emerge from treatment with better tools to deal with the life she'll be returning to.
"This is just a time for me to emotionally check out for a second and take care of myself and come back in 30 days as the best 30-year-old woman I can be," she says.
"All the things in my life will be there when I get out, but you know what? I'm hoping they're not going to affect me as much," she adds. "I'll have the tools to know how to deal with them."
Rimes's husband Eddie Cibrian, 39, tells PEOPLE he's giving his wife his full support and praises her courage.
"My wife is the most remarkable and courageous woman I know," says Cibrian. "I am so proud of her for having the strength to finally take some time for herself. I will be with her every step of the way."
Though Rimes has been the victim of body bullying in the past, her rep confirms she is not seeking treatment for an eating disorder or substance abuse.
The country star – who has been gearing up for the upcoming release of her latest studio album, Spitfire and a fall tour – will continue to perform in September during breaks from treatment. "The facility has granted her permission to keep her weekend tour obligations, as LeAnn doesn't want to disappoint her fans," adds her rep. "She will report back after each weekend."
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