Today is Demi Lovato's 22nd birthday, and we thought it would be so fun to take a look back on how much her style has changed over the years. We first loved Demi as a totally adorable youngster on Barney & Friends, and her style has come a long way since then!
During her days on Camp Rock, Sonny with a Chance, and As the Bell Rings, Demi developed her own unique edgy style, and she's been wowing us with over-the-top hair colors, jaw-dropping red carpet ensembles, and chic street styles. She has really transformed into a total fashionista!
Click through the gallery above to watch Demi's style change right before your eyes. Then, wish her a happy birthday in the comments section below.