Country singer Randy Travis has been hospitalized in Texas for complications from a recently contracted viral cardiomyopathy, a rep for the singer tells ABC News in a statement.

The Grammy winner was admitted Sunday, and has been listed in critical condition.

Travis, 54, who is best known for the songs "Three Wooden Crosses," "Forever and Ever, Amen," "Diggin' Up Bones," and "Deeper Than the Holler," has been rebounding from a very tough 2012.

Last August, the singer was arrested for driving while intoxicated, a misdemeanor, and obstruction, a felony - while naked. Two weeks later, he was cited for assault after he allegedly participated in a fight in a church parking lot.

But according to the singer's Twitter account, he'd been performing regularly, and he was nominated for a 2013 CMT Music Award.

According to the National Heart, Lung and Blood Institute, cardiomyopathy "refers to diseases of the heart muscle. … In cardiomyopathy, the heart muscle becomes enlarged, thick, or rigid. In rare cases, the muscle tissue in the heart is replaced with scar tissue.

Treatments include lifestyle changes, medicines, surgery, implanted devices to correct arrhythmias, and a nonsurgical procedure, according to the NHLBI.