I know a lot of people will try to discredit Christina but I'll say she is an icon, due to her voice. She is the vocalist of our generation and has established herself and is compared to other great vocalists such as Mariah, Whitney & Celine. And she most certainly was thee voice during the late 90's and 2000's.
She's had her ups and downs but all music careers are like a roller-coaster. She'll bounce back.