Does Alexandra Burke wear a wig?

I honestly thought that when Alexandra Burke was competing on X factor that she had been given a Wig, a Lace Wig to be exact,  to wear as she went from really short. As seen below.

Alexandra Burke

To mega gorgeous tresses

Alexandra Burke looking fantastic with her new hair

As you can see the new hair only emphasises her stunningly good looks. Now I was really fooled into thinking that this was a wig and that may have been the best option when you then have a photo taken like this.

Alexandra Burke's new tresses

I absolutely love AB and voted loads of time for her in X Factor. I really hope that she snags this before the damage is too great and after seeing Naomi Campbell’s shocking hairline, that truly shows that you have to give your hair a rest in between wearing hair extensions, especially weaving hair extensions.

I can talk from first hand experience as I had braided extensions in my hair continuously for 10 years and suffered from a weakened hair line at my temples. Now that I wear wigs and have done for the last 2 years, it has helped my hair a lot.