Did Miley Cyrus really just admit to smoking marijuana?

In a video obtained by The Daily, the 19-year-old singer made a starling announcement when she addressed pals during her birthday bash at Beacher's Madhouse inside L.A.'s Roosevelt Hotel Tuesday.

"You know you're a stoner when your friends make you a Bob Marley cake," the former Disney star said. "You know you smoke way too much f-cking weed!"

The "Can't Be Tamed" singer famously denied smoking marijuana after she was videotaped smoking out of a bong in late 2010; she claimed it was salvia, a legal hallucinogen.

Cyrus' celeb BFF Kelly Osbourne, 27, even poked fun at the incident, telling the crowd: "I thought salvia was your problem!"

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Osbourne later defended their onstage banter via Twitter, telling her followers that "if Miley isn't recording/filming/touring, she works every day. How could she possibly do all that if she was a stoner?"

According to Osbourne, the entire exchange was a joke. "Let me make something very clear: after Miley's salvia incident we started calling her 'Bob Miley' as a joke!" she explained. "The cake was also a joke! It makes me sick that Miley's so-called 'friends' would sell her out and lead people to believe she is someone that she is not!"