So why does Welch (who happens to be one of my favorite singers) look older than her years? Aside from the fact that this is an unflattering photo of her, Welch looks older than her years in most pictures I see of her. The harsh hair color combined with pale, pale skin ages her. If she wanted to look younger, she should tone down that hair color and get some healthy pink in her skin.
Those clothes aren't helping her, either. She needs to dress her age, not her mother's.
And smiling. Smiling can make someone look 10 years younger.
Also see: 25 Makeup Tips for Older Women