Do you think Aubrey O'Day had surgery?

Before reported surgery:

After: reported surgery

after looking at old and recent pics of aubrey ive noticed a few things have changed about her! first off Blonde hair and extensions, contacts, botox (maybe) and colligen! I dont know or maybe its just a really good MakeUp artists idk! She was on the Wendy Williams talk show on august 13, 2008 and did not admit to any surgery. Although wendy tried to inforce that she did, Aubrey wasn't given in and declined the comments. A part of me deep down wants to believe that she didnt do any work but after the numerous watched episodes of Making The Band 4 I haven't a clue!