OK, so I don't really have a favourite celebrity, so after much searching, I found a picture of 
Lucy Walker, an indie director previously known for her work on Blue's Clues.  Here she is, wearing a blue dress with a black belt:
Here I am, in my Henrietta Pertuz Molly dress, as worn at Toronto's LG Fashion Week:
Dress:  Henrietta Pertuz, size 2
Belt:  Jacob, XS
Boots:  Donald J. Pliner, size 5 (yep, Donald J. Pliner was all I wore during Fashion Week!)
This was a: