Scarlett JohanssonScarlett JohanssonWe thought Scarlett Johansson was a certified blonde for life.

It turns out we were wrong.

Please note that hardly ever happens.

Scarlett showed off her newly-darkened locks at a fashion awards show in New York.

And she slicked on some bright red lippy for extra impact.

Very vampy, we say. Very sexy, we like.

Of course, the Lost In Translation star isn't the first actress to switch hair shades.

Oh no.

Find out who else has jumped ship in the gallery above...