George Pimentel, WireImage
In the video, the teen star is seeing puffing smoke out of a bong, allegedly containing the hallucinogenic drug Salvia, which is a legal plant. After Cyrus inhales the smoke she mistakes a fellow patron of the party for her on-again off-again, Liam Hemsworth. Cyrus says: "Oh I'm gonna lose it now... I'm going. Having a little bit of a bad trip! Is that a f---ing Liam lookalike or what the hell is that? Is that my boyfriend? Is that my boyfriend? Oh my God, he looks so much like Liam!" Miley Cyrus continues to react to the drug, asking a friend at the party: "Is it me tripping? Is it me tripping?," before breaking out in a fit of laughter.
The two-and-a-half minute digital camera video, obtained by TMZ, was shot by a female friend of the singer/actress at a party in Miley Cyrus' California home in late November, just a few days after her 18th birthday. Watch Miley Cyrus' bong-smoking video here.
Watch Miley Cyrus' 'Who Owns My Heart' video after the jump.
Get more on Miley Cyrus at PopEater
Kellie Pickler Advances to 'Dancing With the Stars' Finals
Taylor Swift Admired George Jones' Passion for Performing
Jennifer Hudson Performs 'Inseparable' With 'American Idol' Winner Candice Glover
Rock the Bells 2013 Lineup Includes Ol' Dirty Bastard & Eazy-E Holograms
Carrie Underwood Says She's 'Queen of Awkward' in Marie Claire Interview
Man Arrested After Midnight Swim Near Taylor Swift's Rhode Island Home
Tim McGraw Stops Atlanta Show to Help Ailing Fan
Nine Inch Nails Lose Bassist Eric Avery
Lil Wayne's Emmett Till Lyric Was Never Meant for Public Consumption
Kree Harrison Debuts Potential Single 'All Cried Out' During 'American Idol' Finale