Country singer Randy Travis underwent heart surgery Monday. 

Travis' sister-in-law, Teresa Traywick released an update on his condition, adding that his sickness is heredity.

"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 told People magazine. "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."

The 54-year-old singer was hospitalized over the weekend due to complication of a viral cardiomypathy, a condition that enlarges and weakens the heart muscle, according to reports. After being admitted Sunday, Travis was said to be in critical condition. 

Viral cardiomyopathy is an acquired heart ailment, caused by an infection and subsequent damage to the muscles of the heart. If not treated properly, it can lead to heart failure. 

In light of Travis' sickness, his next scheduled concert that was supposed to take place in Deadwood, South Dakota Wednesday has been cancelled. 

Friends and loved ones took to Twitter to express their concern and offer support. 

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

Sending healing strength and love to you this morning @randytravis -KU," Keith Urban tweeted.

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

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

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