I don't see how this isn't age appropriate, she's only a year older than J.Lo and two than Gwen. It'd be different if this was an older pop star, but I think she is flaunting her body just right.
The only complaint I have is the dated styling on the first look with the hat, black sweater, white shorts and thigh high boots. No one should ever dress like that.
She looks great.
How old is she? I just know she's old because of Titanic