Demi’s been through it for sure. She started her career along with Selena Gomez when she was 7 years old on Barney & Friends and she continued her acting career until she became a singer and released hits such as “Heart Attack” and “Stone Cold.”
Age-wise she doesn’t look all that different. Her face does look aged and her hair lightens but I don’t think she’s changed all that much. I guess we’ll see with time!