Happy 45th birthday, Julia Roberts! Roberts has been a household name for decades, but she's still every bit the Pretty Woman we've loved from the beginning thanks to her always-amazing hair, and her confident, megawatt smile. "Being confident in my looks came with being confident in myself and getting a true understanding of who I am," she told InStyle previously. "If I had ever considered myself classically attractive or I had been the pretty girl in high school, it probably would've messed up my head going into show business and having everyone lining up to scrutinize me, but because my face is a little crooked, I just laugh myself off." The star's poise is certainly something we've admired for years, and to celebrate her big day, we're taking a retrospective look at her many trendy style choices -- from the '80s-era perm she rocked in high school, to the trademark loose curls she wears today. See how far Roberts has come in our gallery!