Today is a really exciting day for Demi Lovato: the edgy fashionista is celebrating her 22nd birthday! From her ever-evolving rainbow hair colors to her incredible red carpet fashions, Demi is never afraid to switch up her style and have fun with her look! In celebration for her big day, we rounded up some of her best looks ever to take a look back on how much she has changed.
Click through the gallery above to see Demi's fiercest fashion moments of all time. Then, make sure to wish her a very happy birthday in the comments section below!