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Believe it!

Some of the White House’s most well-known residents never moved out. In a recent interview with E! News, former first daughters Jenna and Barbara Bush revealed that the nation’s most famous address, 1600 Pennsylvania Avenue, is also one of the most haunted.

"The wildest thing that ever happened to us living in the White House was that we heard ghosts," Jenna said. "We maybe wouldn't have believed that had you told us the White House is haunted, but it indeed is."

Jenna speculated that the entity they came in contact with most often was the spirit of the nation’s first FLOTUS, Martha Washington, though Barbara wasn’t so sure. Because the ghost could play jazz music, Barbara believes the spirit was one of the White House’s more recent residents.

“We were in bed, dozing off, heard someone singing from the fireplace, like an opera-type singing,” Barbara recalled in an interview with People. “Then we heard piano music, like creepy olden times piano music coming out of the fireplace.”

WATCH: Family Tradition with Jenna Bush Hager and Barbara Bush

They considered jumping into bed with their parents but the girls, then in their teens, decided they were too old.

To this day they’re believers: the White House is home to more than just the first family.