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(USA TODAY)UPDATE:Randy Travis' publicist has released a statement clarifying the singer's treatment. "Contrary to reports, Randy Travis has not undergone heart surgery," representative Kirt Webster said. "Travis was admitted into a Texas hospital on Sunday and underwent placement of an IMPELLA peripheral left ventricular assist device for stabilization prior to transferring hospitals. The Grammy winner remains in critical condition."

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Country singer Randy Travis, 54, underwent heart surgery, according to his sister-in-law Teresa Traywick.

"We have been told he has had surgery. Our prayers are going out to him because my husband just had a heart attack last year, so it is in their family," she says in a statement. "Their mother passed away at an early age with her heart, so it is like these boys are following right in their footsteps. My prayers are with them. That's all I can say right now."

Travis was in critical condition at a Texas hospital after being admitted Sunday. According to a press release from his publicist, the singer of such hits asForever and Ever, Amen, On the Other HandandThree Wooden Crossesis suffering complications of recently acquired viral cardiomyopathy.

Viral cardiomyopathy is a weakening of the heart muscles caused by a viral infection.

MORE:Cardiomyopathy 'is serious and could be life-threatening'

Travis, who pleaded guilty to a charge of driving while intoxicated in Texas earlier this year, was hospitalized in 2012 after a fight near a church in Plano, Texas.

Meanwhile, celebrities are sending their thoughts to Travis on Twitter.

Keith Urban: Sending healing strength and love to you this morning @randytravis -KU

Tracy Lawrence: Sending a get well message out to my buddy @randytravis tonight. Thinking of you and wishing you a speedy recovery.

Lance Armstrong: "Thoughts go out to @randytravis. Heal up soon my man! One of country music's greatest voices ever."

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