JUST ADDED: 5 Seconds of Summer will be rocking the stage at this year's iHeartRadio Music Festival Village in Las Vegas! The band sat down with Ryan Seacrest to break the news. Click here to buy your tickets now, before they sell out!
(Yahoo!) - Then: Kate Upton was focused on getting glam for the camera from an early age. "I remember the days I had to do my own hair before a swimsuit shoot. #tbt," she joked of this early '90s pic she posted on Instagram.
Now: Upton, 21, is trying out acting in movies like the recently released "The Other Woman," but she's best known for modeling in barely-there bikinis (or less). As cover girl for the Sports Illustrated Swimsuit Issue in 2012 and 2013 — she also graced the back cover of the magazine in 2014 — Kate can leave her locks to the professionals now.