I think we can all firmly agree that Tess has found the perfect outfit for the upcoming party season with her gorgeous sequin dress ... blonde beauty wore a midnight blue gown by Markus Lupfer ...

The Grammy-nominated star wowed in a midnight blue Roberto Cavalli two-piece set and $3 million worth of Lorraine Schwartz jewels Tracey Harrington McCoy is a celebrity news writer at PEOPLE Digital.

It might not be the most high brow show on the box, but the 40-year-old definitely brings a touch of class to tonight's proceedings in the high-necked brocade dress in midnight blue, which she ...