Kelly Osbourne attended a photocall for E! at El Plaza Condesa in Mexico City earlier this week looking out of this world. The "Fashion Police" host wore a silver cocktail dress and pulled her long purple hair back into a high ponytail.

Osbourne donned large cross earrings and bright pink lipstick. She looked like a woman from the future.

Sophie Bush and Brittany Snow attended the Third Annual Autumn Party with designer J Mendel at The London West Hollywood this week also wearing silver dresses.

Snow opted for a strapless frock with black pumps, while Bush paired her silver and black dress with bright red sandals with bows.

Check out the silver sirens...