As you can probably tell I love hair and hairstyles, I have done a lot of different stuff with my hair and own a multitude of wigs, because I will not do every style I wanted to do specific lists for some people who have utilized their hair and wigs as a form of self expression. Although you will find me doing a lot of queer celebs that is not a requirement, those are just the people who I look up to in terms to style and fashion/hair choices.
So Xtina did some fun stuff with her hair, especially during the Dirrty era. Some of it was definitely a product of the time. 2000s hair was all over the place, crimping and straightening hair and adding color clips was common.