While most of these Hollywood elite are now all grown-up and gracing red carpets and silverscreens well-dressed and dazzling onlookers and audiences in full hair and make-up, have you ever wondered what they may have looked like before they were household names? Some were clearly blessed with perfect genes, but some evidently worked very hard to achieve Hollywood perfection. Here is a collection of 40 celebrities then and now.

1.) Avril Lavigne

2.) Brad Pitt

3.) George Clooney

4.) Jermey Piven

5.) Justin Timberlake

6.) Kesha

7.) Megan Fox

8.) Miley Cyrus

9.) Nicole Kidman

10.) Russell Brand

11.) Ryan Seacrest

12.) Shia La Beouf

13.) Taylor Swift

14.) Adam Levigne

15.) Alan Rickman

16.) Bruce Willis

17.) Christian Bale

18.) Christine Ricci

19.) Dakota Fanning

20.) Daniel Radcliffe