Time Travelling with Beyoncè

This unbelievably fun and clever new video for Beyoncè's Countdown" caught our eye and we just can't get enough of it. The video is a virtual tour of the past five decades of style icons, with nods to everyone from Ann Margaret and Audrey Hepburn to Diana Ross and Andy Warhol, all the way through to Jennifer Beals' unforgettable 1980s look in Flashdance.

How many references did you catch? And which of Beyoncè's looks is your favorite?