The Worst of What Were They Thinking?!

25. Anne Hathaway -- in Givenchy Couture -- at the London premiere of "Les Miserables"

 

24. Mary-Kate Olsen -- in The Row -- at the Costume Institute Gala in NYC

 

23. Ashley Judd -- in Carolina Herrera -- at the 64th Primetime Emmy Awards in Los Angeles

 

22. Drew Barrymore -- in Ports 1961 -- at the Washington, DC screening of "Big Miracle"

21. Florence Welch -- in Alexander McQueen -- at the Costume Institute Gala in NYC

 

20. Stella McCartney -- in Stella McCartney -- at the British Fashion Awards in London

 

19. China Chow -- in Jeremy Scott -- at Logo's NewNowNext Awards in Hollywood

 

18. Jake Shears -- in a bow tie, track jacket, and half a pair of pants -- at the amfAR Inspiration Gala in NYC

 

17. Kristen Wiig -- in a messy top knot, ivory cape, leopard print-blouse, and high-waist pants -- at the Season 2 premiere of "Portlandia" in NYC

 

16. Jennifer Aniston -- in a sagging pair of fiance Justin Theroux's jeans -- exiting LAX

 

15. Richard Simmons -- in a boa-adorned tank, fishnets, and freaky glasses -- strolling through Beverly Hills

 

14. Vanessa Hudgens -- in a cheetah-print diaper and curtain-like cape -- leaving a recording studio in Los Angeles

 

13. Brad Goreski -- in horrifyingly cuffed trousers and granny shoes -- at the Bravo upfronts in NYC

 

12. Ke$ha -- in a Linda Hogan-inspired jumpsuit -- at the 26th Annual Genesis Awards in Beverly Hills

 

11. Chloe Sevigny -- in Proenza Schouler -- at Jeffrey Fashion Cares in NYC 

 

10. CeeLo Green -- in a lumberjack top, basketball shorts, and socks-n-sandals -- at NBC's Summer Party in Los Angeles

 

9. Lady Gaga -- in Comme des Garcons -- leaving the Park Hyatt hotel in Paris

 

8. Ashanti -- in Falguni & Shane Peacock -- at Mercedes-Benz Fashion Week in NYC

 

7. Britney Spears -- in a mesh-paneled halterneck blouse, barely-there denim cutoffs, and tired Ugg boots -- leaving an ice cream shop in SoCal

 

6. Jessica Biel -- in Oscar de la Renta -- at the New York premiere of "Hitchcock" 

 

5. Marc Jacobs -- in Comme des Garcons -- at the Costume Institute Gala in NYC

 

4. Ciara -- in Givenchy -- at BET's Black Girls Rock! in NYC

 

3. Lindsay Lohan -- in Donna Dashini -- at the premiere of "Liz & Dick" in Beverly Hills

 

2. Fantasia Barrino -- in an ill-fitting, sequined eyesore -- at the Season 11 "American Idol" finale in Los Angeles

 

1. Heidi Klum -- in Versace -- at the MTV European Music Awards in Frankfurt, Germany