Beyonce is really motivating me to hit the gym hard this week.  She performed in front of the United Nations General Assembly for World Humanitarian Day wearing a curve hugging white sequin gown by Marc Bouwer.  Bey nails this look, showing off her post-pregnancy body.  The video of her performing I Was Here will premiere Aug. 19 on World Humanitarian Day.

The long sleeved gown with accentuated shoulders and cut-out detail is from Marc Bouwer’s Pre-Fall 2012 collection.  With hair swept back into a sleek pony-tail and very clean makeup, we give Bey two thumbs up.  She gets an A+ for that rock solid physique.