They've all made the 68th Annual International Best-Dressed list but were they always this sartorial in their dress sense? New Idea has plumbed the archives to find that George Clooney, Brad Pitt, Angelina Jolie, Demi Moore, Ashton Kutcher, Lenny Kravitz weren't always looking so stunning.
Click here to see the best dressed celebs before and after
Who do you think has changed their style most dramatically? Who is your favourite? Let us know in the comments section below.