Sweetie Belle is a young white-colored unicorn with a pink and purple-colored mane.
In the Generation 3.5 series, Sweetie Belle is a light-hearted pony who particularly likes baking sweets for herself and her affiliates. In Friendship is Magic, she is the younger sister of fashion designer Rarity and attempts to help her in her shop despite her inexperience and clumsiness. She is a member of the "Cutie Mark Crusaders", a trio consisting of herself, Apple Bloom and Scootaloo who aim to discover their special talents and earn their cutie marks. She is a skilled singer-songwriter, but has yet to truly realize this talent due to her stage fright and her desire to be like her elder sister.