The Past is Prologue or ... Everything Old Is New Again

I was going to make this part of an inspiration post but I am curious to see if anyone can accurately date this wonderful photo.

Note: If you know this celebrity, please wait to see if anyone can guess the era just from the photo.

It is posted here in black and white so that the colors and/or glitz will not give the era away?

What do you think? When was this taken?