Miley Cyrus Drug Use Pictures & Video?

Troubled pop star Miley Cyrus celebrated her 18th birthday by experimenting with a bong reports TMZ.

In video shot during a party at Miley's L.A. area home 5 days after her 18th birthday, the Disney star is shown with the bong to her head before catching a case of the giggles.

"I'm having a little bit of a bad trip," Cyrus says , "Is that a Liam look-alike - is that my boyfriend?"

"Is that me tripping? Does that look like Liam at all?"

"I want more of that s---."

The bong is reportedly filled with the natural herb called salvia which has psychedelic qualities. Possession of salvia is legal in California.

The video shot by a friend of Miley's was reportedly stolen or copied from that friend's camera.