YSL

Head to toe Yves Saint Laurent isn't usually in my forecast, but the only part of this outfit that actually cost me some bucks were the ...

Yves Saint Laurent Belle d'Opium Launch

Photo credit: Style.com Click here to check out Style.com's coverage of the event.

Loulou & Betty

These are two of Yves Saint Laurent's favorite muses: Betty Catroux and Loulou de la Falaise .Catroux's most famous collaboration ha...