We really can't believe it, but today is Aly Michalka's 26th birthday! The actress and Aly & AJ/78violet singer has been one of our fave red carpet style stars for years, always showing off the trendiest styles and coolest hair and makeup looks.
But that doesn't mean her style hasn't changed as she's grown up: in fact, her current fave outfits are so different from her go-to styles of her childhood. We've rounded up some of her most memorable styles ever to show just how much her signature look has evolved.
Click through the gallery to see how much Aly's style has changed over the years. Then, make sure to wish her a happy birthday by leaving a comment below!