Stylist Tina Leung (in Marc Jacobs sequin dress), from Tina Loves blog, before Chloe, Paris, October 2013.
Tina's sequin dress reminds me of Erin Wasson's sequin "denim" jacket from NYFW... it has that trompe l'oeil feel, this time with a pajama effect.  I think if you are going to wear (a lot of!) sequins during the day, do as Tina has and keep hair, make-up and accessories minimal.