Most Beautiful 2009

Bad Hair Days and More: Stars' Biggest Beauty Blunders

Terrible dye jobs! Waxing gone wrong! Even the hottest stars have bad beauty days. Check out the embarrassing tales from Carrie, Miley, Leighton, Rihanna and more!

CHRISTINA APPLEGATE

"The worst [was] when I had dark hair and I decided to go back to blonde. I'm a Sagittarius and I need everything right now – I can't wait. So I went to my friend and asked her to make me blonde again. She took a tub of powdered bleach and just put great globs of it on my hair. I lost, like, four inches of hair. My head looked like a Q-Tip pulled apart. I had to have the burned edges cut off. It happened during the last weeks of Married … with Children so I just wore a wig."