Katie Holmes sure seems to be in a great mood during her guest judging appearance on Project Runway. We'd never guess that she had just announced her split from Tom Cruise four days before!

Suri's 33-year-old mom is appearing on the hit show's All Stars' second season. In the brief clip, Holmes tells the contestant, "I've been watching." Such a fashionista!

Other celebs who will be guest judging during the upcoming season include Kylie Minogue, Stacy Keibler and Liv Tyler.