For a singer, one of the biggest fears imaginable is the worry that they will somehow lose their ability to perform. 'American Idol' superstar Kelly Clarkson relates to that fear because she personally experienced it.

During a recent interview with ET Online Canada, Clarkson revealed that she temporarily lost her voice after giving birth to her daughter, River Rose. The superstar was convinced that her legendary career was over -- that all of the hard work she'd put in would go to waste.

"I literally had a moment where I cried and drank wine all day," she spills. “I was like, ‘Oh God, I’m not going to be a singer anymore!’ I thought my life was over!"

Because Clarkson has so many big songs in her catalog, her singing style necessitates a wide vocal range and a lot of air. "You don’t realize what happens with your diaphragm and just … breathing," she says.

"I was bawling to my husband and completely hammered, just going, ‘Oh, my God, it’s over. I don’t know what I’m going to do. I guess I could do more charity work,'" Clarkson further recalls. Thankfully, the scare was short-lived. Clarkson quickly regained her voice range.

Despite a difficult pregnancy, Clarkson wants to have another baby. "Only because she came out awesome!” she notes of 7-month-old River Rose. "I literally have the happiest baby. She smiles and she loves people."

She adds that her talent manager husband, Brandon Blackstock, is an incredible father, too, and that "There is nothing hotter than watching a man and a baby."

Clarkson’s new album, ‘Piece by Piece,’ will be released on March 3.

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