Selena Gomez was destined to be a star!Ever since she was a young girl, the actress and singer loved to put on a show and her latest video proves it. On Tuesday, Gomez, 28, posted an adorable throwback video of herself before her Disney days in which she sings along to Britney Spears' song «Don't Go Knockin' on My Door.»The video is set against a purple and blue galactic backdrop, while Gomez wears a black t-shirt and rocks sunglasses with blue lenses.