As the pastel trends of spring and summer fade, silver fall hair colors come into view. "Granny hair" has become especially trendy thanks to celebrities like Kelly Osbourne and Nicole Richie -- but it's not the professionals' favorite hair trend.

Granny hair consists of "extremely bleached, cold-toned hair," explains Garcia, who says that the color is "difficult to maintain and very damaging." However, granny hair is a major fall hair color trend that looks particularly fierce on short-haired women, who want a trendy, irreverent edge.

Just be mindful that if you're over 35, silver hair can start to look a little too authentic, if you catch our drift. This trend is probably best suited to the under-30 hipster contingent.

Mamet finds her edge with a hip, metallic shade.

Goodwin's light silver hue matched with a short pixie cut creates an ethereal, androgynous look.

Duff goes for whimsy with a bluish fade.