There's no question that many of today's celebrities are well-dressed, gorgeous, and great at posing (often with the help of teams of people). Some haven't always looked so flawless, though. We've already taken time to look at our favorite celebrities' first red carpet appearances , which reminded us that most people, famous or not, have a bit of an awkward phase. (Luckily not all of us had to walk red carpets at that point in our lives!) Let's take a look at the celebrities who have only gotten hotter and hotter through the years, ranging from Joseph Gordon-Levitt's major transformation  to Zac Efron 's increasing levels of hotness.