Miley Cyrus has sparked controversy after revealing that she uses cannabis.
The Hannah Montana star made the comments while addressing guests at her birthday party at Roosevelt Hotel in Los Angeles.
Caught in a private video obtained by The Daily, the singer and actress said: "You know you're a stoner when friends make you a Bob Marley cake. You know you smoke way too much f**king weed."
Kelly Osbourne, who presented her the cake, retorted jestfully: "I thought salvia was your problem, man?"
Meanwhile, a supposed insider told the website: "Everyone in the room knows she's a pothead."
Cyrus, 19, recently said that she is trying to shed her Disney image.
> Miley Cyrus: 'Don't call me fat'