DO YOU THINK THEY JUST GOT SICK OF THE BLOND JOKES?

Longtime blond SARAH JESSICA PARKER flirted awhile with dark roots but appears to have committed to chestnut brown all over.

CHARLIZE THERON went brunet for the action flick Aeon Flux. Almost as painfully, she hurt her neck doing stunts in Berlin.

Newlywed BRITNEY SPEARS dyed her hair back to its natural color, saying she wanted to be different from all the other blonds. Oops.

RENEE ZELLWEGER is hoping to play Janis Joplin in a new biopic. All she needs now is granny glasses and a bad habit.

REESE WITHERSPOON darkened her locks and went legally bland to play June Carter Cash. Unexpected side effect: total anonymity.