Britney Spears, two tater tots in hand, invaded the Sugar Factory candy store in Las Vegas this weekend ... and dropped more money on candy than most people do on a new TV.


We're told Brit went buck nutty on the sweets -- three Halloween baskets for her kids, two buckets of Swedish fish and a box of Sugar Factory milk chocolate. Where she really went off was on lollipops: 25 of her own Circus Tour pops for a whopping $25 a piece.

What a sucker.