Katie Holmes Laces Up in Thong Sandals, Shirt Dress to Mark Christian Siriano’s Connecticut Store Opening

Katie Holmes joined Christian Siriano to celebrate the designer’s new store opening.

The actress attended the opening party Tuesday night at the fashion designer’s new retail concept, called The Collective West, in Westport, Connecticut. For the event, Holmes wore a simple white shirtdress paired with a black bag and white and black strappy sandals. Holmes was joined at the event by stars such as Debra Messing, Coco…