Miley Cyrus celebrated her 18th birthday by experimenting with a bong and catching a case of the giggles -- but sources say she was not smoking marijuana.

Watch The Video

The video was shot during a party at Miley's L.A. area home 5 days after her 18th birthday.
According to a source connected with Miley ... the smoke filling the bong is a natural herb called salvia which has psychedelic qualities. Possession of salvia is legal in California.


As for the video ... the source tells us it was shot by one of Miley's friends -- and the theory is someone stole or copied the video from that friend's camera.




Source: Tmz

If Christina Aguilera's hit "Ain't No Other Man" sounds like a classic, that's because its infectious beat comes from a 43-year-old song -- and a new lawsuit claims Sony Music hasn't paid the rightful owner for the sample.
Take a listen ... Christina's song clearly samples from a 1968 latin soul tune called "Hippy Skippy Moon Strut" (aka "I'll Be a Lucky Man) by Dave Cortez and the Moon People. Gotta love that name.

According to the federal lawsuit, filed in New York, TufAmerica purchased exclusive rights to 'Hippy Skippy' in 2004 ... however Sony Music -- Christina's label -- made a deal with Codigo Music and the Clyde Otis Music Group to use the song.

TufAmerica is asking the court to declare it the rightful owner of the groovy '60s hit ... and to void the other publishers' claims on the song. The company also wants damages -- as in money.





Read More: Tmz