Forget what you think you know about how a sixty year old is supposed to dress. Because Helen Mirren is about to change your mind.

Although we've seen her insanely great body in a red bikini, we mostly see Helen Mirren in quiet little cardigans and dresses on the red carpet. Although she could rock a miniskirt, she never goes the tarty route on the red carpet.

So that's why it's so fun to see classy Helen Mirren go edgy in this leopard print Dolce & Gabbana gown.

I've always kind of liked Sheryl Crow.

I mean, she goes on fun girls' trips with her cool friends like Jennifer Aniston  (I go on girls' trips yearly!), she likes to wear jeans most of the time (ditto!), loves horses (giddyup!) and she has adopted children (3 for me).

So imagine my surprise when I caught this recent photo of her (left, in the sundress) looking more like a shy 13-year-old than a kick-ass, almost 50-year-old.

Remember a few years ago when we complained about belly shirts and the fact that young teens wanted to wear them? Well, now the kids may need to start complaining about us.

It seems the latest age group to show its belly is the over-40 set. From people you might expect to show their bellies — like model Carol Alt — to people you wouldn't  — like actress Fran Drescher —  women of a certain age are letting their belly buttons show.