Our picks for the best and worst dressed celebrity fashions for the week of September 1, 2009.

Best And Worst Dressed of 09.01.09

BEST DRESSED
1. Emily DiDonato – in Narciso Rodriguez at the September Issue premiere
2. Briana Evigan – in BCBG Max Azria at the Sorority Row photocall
3. Alexa Chung – Cinema Society screening of Inglorious Basterds
4. Taylor Spreitler – 2009 Daytime Emmy Awards
5. Jessica Stroup – in Notte by Marchesa, boots by Giorgio Armani, clutch by Sergio Rossi at the Extract premiere

WORST DRESSED
1. Kate Linder – 2009 Daytime Emmy Awards
2. Rumer Willis – in Zac Posen, shoes by Fendi at the Sorority Row photocall
3. Ashlee Simpson-Wentz (4th photo) – in Jill Stuart at the InStyle Magazine’s Summer Soiree
4. Stacy Haiduk – 2009 Daytime Emmy Awards
5. Judith Chapman – 2009 Daytime Emmy Awards