Justin Timberlake is dispelling a longstanding rumor about the origins of one of his hit songs ... and apparently it was never about Britney Spears. Speaking with Complex's ...

Del Casher -- the inventor of the wah-wah pedal, renowned guitarist, and film and TV composer -- has died ... TMZ has learned. The musician-turned-inventor passed away on Oct. 1. ...

It's not every day you see Celine Dion hanging out with Jack Black at a Metallica concert ... but that's exactly what everyone saw Saturday night in Las Vegas! As you can ...