She's now embarking on life as a single mother to the former couple's young son Max - and she's embracing the "next evolution" in her life, which includes her first film role in new movie Burlesque.
Aguilera says, "I'm doing good. I'm doing really, really good. Sometimes change is necessary. I'm entering a whole different chapter in my life now with the movie and my son and being a mother. It's the next evolution in my life, and it feels good, it feels really good."