What was Rihanna thinking?  The fashion obsessed singer performed onstage in New York City wearing clam digger trousers with a cropped bustier and fur coat, adding a florally adorned hat and fishnet stockings to make matters even worse!

PHOTOS: Rihanna, Britney Spears, Kym Johnson, Catherine Zeta Jones, Gilles Marini, Holly Madison, Katerina Graham, Paris Hilton, Hailey Glassman, Gwen Stefani, Dominique Swain, Amber Rose And Lindsay Lohan In The Worst Of Pre-Holiday Dressing

Also in New York City was Dancing with the Stars pro Kym Johnson, who looked like a disco ball while attending a Broadway play.

PHOTOS: Gwen Stefani, Reese Witherspoon, Rachel McAdams, David Beckham, Zac Efron, Chloe Sevigny, Kate Gosselin, Kate Beckinsale, Krysten Witter, Leona Lewis, Kate Moss, Calista Flockhart, Cate Blanchett, Katy Perry And Russell Brand In The Best Of Pre-Holiday Dressing

What horrible shirt did Hailey Glassman get out of her breakup with John Gosselin?  Check out the gallery in Style to find out!

• TAGS

• Style
• Amber Rose
• Britney Spears
• Catherine Zeta Jones
• Dominique Swain
• Gilles Marini
• Gwen Stefani
• Hailey Glassman
• Holly Madison
• Katerina Graham
• Kym Johnson
• lindsay lohan
• Paris Hilton
• rihanna

Pre-Holiday Dressing: Worst

• TAGS

• Amber Rose
• Britney Spears
• Catherine Zeta-Jones
• Dominique Swain
• Gilles Marini
• Gwen Stefani
• Hailey Glassman
• Holly Madison
• Jessica Alba
• Katerina Graham
• Kym Johnson
• lindsay lohan
• Paris Hilton
• Pre-Holiday Dressing: Worst
• rihanna