Songstress Carrie Underwood has opened up about a frightening experience she had back in July when she realised that her baby son and pet dogs were accidentally locked inside a car.

During a new interview with US99.5 radio, the beauty explained that it was quite an ordeal that left her panic-stricken:

"We were at the airport, the car was running, the radio was on, the air conditioning was on, our family kind of came to see us off. As you do, you get out of the front seat and you shut the door so you can turn around, so you can get your luggage out."

"Immediately, one of the dogs jumped up on the little control panel on the door, and I heard the thing click. I was like, ‘The doors locked, the doors locked, the doors locked!'"

She went onto add that it was a scary experience, but luckily her brother-in-law was able to break the car window and everyone was fine: "We were trying to jimmy open the car door. Nobody had a hanger. I was trying to get the dogs to come back over and do the same thing and unlock the door."

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Watch behind-the-scenes footage from Underwood's 'Smoke Break' video here: