Jessica Simpson through the year

Simpson performs "Where You Are" with then-beau Nick Lachey in  

Simpson poses on the red carpet at the 27th American Music Awards in 2000.  

Simpson rocks a matching denim set in a 2001 photo shoot.  

Simpson shows off a new hairstyle at Z100's Zootopia in 2001.  

Simpson attends MTV's "TRL" Tour that same year.  

Simpson adds color to her locks at the 2003 AMAs.  

She sports bangs a few months later at the 2003 Billboard Music Awards in Las Vegas.

Simpson debuts a new 'do at the 2005 People's Choice Awards.  

Simpson launches her now-defunct Dessert edible beauty line in 2005.