When Christina Aguilera appeared at a recent NBC press event looking lovely and svelte as ever in a pink minidress, we were reminded of all the other celebs who've wowed us with their weight loss.

Browse our gallery of slimmed-down stars to see who else battled the bulge and won.

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  • Christina Aguilera

  • Kelly Clarkson

  • Kirstie Alley

  • America Ferrera

  • Rihanna

  • Marc Jacobs

  • Khloe Kardashian

  • Carson Daly

  • Christina Ricci

  • Courtney Love

  • Hilary Duff

  • Jennifer Hudson

  • Jonah Hill

  • Jordin Sparks

  • Kelly Osbourne

  • Lea Michele

  • LeAnn Rimes

  • Miley Cyrus

  • Nicole Richie

  • Raven Symone

  • Seth Rogen

  • Nicole "Snooki" Polizzi

  • Jenni 'JWOWW' Farley