Justin Bieber shocked (and wowed) his Beliebers when he opted to bleach his brown hair in late 2014. It was a totally different look for the singer, who once had a haircut named after his signature 'do.

JB isn't the only star to play with the color of his locks. In early 2015, Lena Dunham switched her platinum blonde hair back to brown. Singers like Demi Lovato and Katy Perry are constantly experimenting with different hair hues. No matter which color they try, there's no denying that the transformation is very dramatic.

Check out the stars who looks completely different with dyed hair in the gallery above!