Stella (Winx Club, seasons 1-4)

Stella is the Fairy of the Shining Sun, and the princess of Solaria, a place she speaks highly of. She is considered a delinquent at Alfea for her antics, which is why she's a year older than her class. Because she's so self-conscious about her physical appearance, Stella may come off as being vain, but still cares deeply about her friends. Her powers come from the sun and the moon.