The Celeb Guide to Having a Successful Cheat Day

Oh, you didn't know? Calories don't count on cheat days – but that doesn't mean we're not curious about what we're up against

GOLDEN RULE: ALWAYS GO HARD

# of calories: 419 per slice

Mouth, meet Britney Spears' homemade peach cobbler – or its remnants. The pop star never ceases to amaze us with how she indulges in irresistible desserts while still maintaining such an enviable bod.