Intellectual Question: The Mystery of Beyonce's Skin

The above is a recent photo of Beyonce. Again, I love her outfit, shoes, and hand bag. However, after posting up the first picture on my Facebook several people talked about her skin. Some believe she's been bleaching it for a while. I, however, believe her (too) blonde hair makes her skin look much lighter than it is.

To the right is a picture of Beyonce with a darker weave and her skin looks different. What do you think? Do you think Beyonce has tampered with her natural beauty (like so many other celebrities) or could she just pick out bad weave colors?