LAST DANCE FOR BRITNEY!

Prancing pop tart fearing career spiral after foot injury

- 

TOXIC singer Britney Spears is tumbling into another tragic tailspin that may leave her locked away in a loony bin because the booty-shaking pop princess fears injuries could prevent her from ever dancing again, sources squeal.

Guests at L.A.'s notorious Chateau Marmont hotel recently bellyached about a disturbance being caused by a boozy gal matching Britney's description the same night the ruffled songbird allegedly bickered with her bad news beau, felon Paul Richard Soliz! "People said she was drunk and fighting with her boyfriend who wanted to leave. But she demanded he stay and was screaming at him," an insider spills.

"She must have decided she was some sort of acrobat and was doing leaps and cartwheels down the hallway.