BRITNEY SPEARS - FEDERLINE PLANS LAS VEGAS CLUB VENTURE

BRITNEY SPEARS' husband KEVIN FEDERLINE is planning to launch a new Las Vegas, Nevada, nightclub just in case his pop career doesn't take off.

The dancer is in negotiations to take charge of a secret new Sin City venture at the Palms hotel and casino, which will rival the party capital's biggest clubs, according to American magazine In Touch.

But an insider tells the publication that Spears is trying to talk her husband out of the idea because she doesn't want Federline living it up in Las Vegas - the site of her embarrassing 2004 wedding to JASON ALEXANDER.

The source says, "The last place Britney wants Kevin to be spending his nights is in a nightclub, even if he's the owner. But he thinks it will be a gold mine and that he'll make millions."