Brace yourselves, Billie Eilish fans! The American teen singer drops by Dress Up Who with an amazing dress up challenge for you and this might be your only chance to become her personal stylista for one day! Now those who follow Billie Eilish already know that she never fails to impress with her outfits and that her signature fashion style is anything but boring - do you think you could find a new look for her which is both jaw-dropping and highly original at the same time?