Miley Cyrus is spilling her parents' secrets. In an interview on The Tonight Show on Dec. 13, the pop superstar revealed that her dad, Billy Ray Cyrus, and her mom, Tish, smoke weed regularly.

"My mom’s a big stoner," the younger Cyrus says. "I remember when I started smoking weed. I mean, she thought I was growing little horns and just becoming the devil, but now she smokes more pot than anyone I know."

"I'll call her on the phone and I’ll tell her, 'I know there is a doobie on your lap' and she’ll be like, 'Ok, I gotta go smoke this with your dad," Miley furthers, dishing that her dad partakes, too.

It's become a regular hobby for her parents, she says, that involves ... hummingbirds?

"Actually, it's very sweet — they smoke together and they play with their hummingbirds. But hummingbirds are very small and very fast. (These hummingbirds) are really slow now because dad overfeeds them," Miley says.

Billy Ray has even named one of the hummingbirds: "Sunny."

"That's like their little magic time," Cyrus tells Fallon.

The revelation about her parents comes in the same week that Cyrus admitted she's gone back to smoking weed after quitting for a little while.

"My mom got me back on it," she says in another recent interview. "When I’m just working I don't think I function at my highest, most intelligent, most being-able-to-be-as-aware-and-as-present, so I don't smoke when I work."

Billy Ray was the first to help Miley when she lost her California home to wildfires earlier this year.

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