Christina Aguilera talks about depression

Actually, she doesn't. She seems to be talking about not being happy all the time:

She explains, "I do battle with depression. It's something that is always right below the surface. And it's almost seductive to go to a place of sadness and darkness... I'm truly thankful for the darkest times in my life.

"I definitely don't choose the safe way of living or expressing myself but I wouldn't have it any other way."

Confusing 'sadness' and 'depression' is a bit like muddling up 'burlesque' and 'dancing around with no skirt on'.