Which of these color-shifting celebs are better as sunny blondes and which ones embrace their dark side as sultry brunettes? You tell us!

Do you like Rachel McAdams better as a blonde or a brunette?

Do you like Rihanna better as a blonde or a brunette?

Do you like Kristen Stewart better as a blonde or a brunette?

Do you like Charlize Theron better as a blonde or a brunette?

Do you like Jessica Biel better as a blonde or a brunette?

Do you like Reese Witherspoon better as a blonde or a brunette?

Do you like Leona Lewis better as a blonde or a brunette?

What Do You Think?