Red Carpet Sunglasses?

So I was talking to a friend today about sunglasses and the red carpet. And he was absolutely adamant that sunglasses do not have a place on the red carpet...a stance which he deftly defended by noting:
1. It's a formal event and gowns are not a natural style pairing with sunglasses.
2. The ladies in particular have perfected their hair and makeup by investing hours and dollars into updos and photographer-ready foundation.

These are good arguments...

So now I might have to add the red carpet on my no sunglass list, joining sunglasses at night.

Men in sunglasses on the red carpet, however, I cannot mind. Just look at Brad Pitt. No reall. Just look at him. When he's in the right sunglasses, with a groomed face and no knit beanie, he may actually be hotter than he was in his youth.