The 32-year-old Montreal native attended the prestigious TV event wearing a strapless seafoam green satin ballgown which highlighted the star's svelte waist but unfortunately did nothing else for the actress.
Jon Hamm's TV wife looked stunning save for the gathered, layered fabric at the chest which gave Jessica unsightly lumps and bumps. We're pretty sure the ever-stylish Megan Draper would not approve of this look.
Fortunately, Jess was able to salvage the look with dance-ready black pumps, a chic up 'do with her hair parted in the middle and sparkly diamond earrings.
But we think the gorgeous star should have taken some red carpet lessons from Emmy Awards attendees of the past.
What do you think of Jessica's dress?
More Emmys red carpet fashion: