Trisha Yearwood endured a scary flight last week. The singer had just finished a three-day, 60-mile walk to benefit the Susan G. Komen breast cancer foundation and was headed home to Oklahoma when her plane had to make an emergency landing.

"We had been in the air for almost an hour when we heard a loud pop," Yearwood tells PEOPLE magazine.

That pop was a window towards the front of the plane that cracked at 30,000 feet.

"The flight attendant came back and told us to remain calm," says Yearwood. "That's when we saw the two pilots with the oxygen masks on. Hearing them breathe like Darth Vader made it a little harder to stay calm."

As the crack in the window got bigger and bigger, the plane made an emergency landing in Baltimore before the window completely shattered. Yearwood was then stranded in Baltimore for a few hours before she could get on another flight home, but she made the best of it by going out for a "fantastic" seafood dinner.

"We toasted to surviving the three-day walk -- and the emergency landing!" she says.

This isn't the first time Yearwood has heard a suspicious noise on a plane. She once rescued a baggage handler at the Seattle-Tacoma airport who was trapped inside the cargo hold of a plane. He began pounding on the ceiling, which happened to be right under Yearwood's seat. She called a flight attendant to investigate, and the handler was rescued just before the plane took off.