Katie Holmes isn't letting a little thing like divorce keep her down.

The actress, who filed for divorce from husband Tom Cruise on Friday, stepped out Monday to film a previously scheduled appearance on Project Runway: All Stars. Holmes, 33, is serving as a guest judge on the reality fashion competition, which films at Parsons the New School for Design in New York City.

Project Runway's 10th season will premiere July 19. Holmes' stint on All-Stars will likely air sometime in early 2013.

• Want to have lunch with a vampire? Now's your chance! Vampire Diaries star Ian Somerhalder is taking part in a Charitybuzz auction that will award the highest bidder a private lunch with the smoldering star. All proceeds will benefit the Ian Somerhalder Foundation, which plans to open up an animal sanctuary.

“A big component of ISF is not just habitat or species conservation, it’s animal protection and youth education,” Somerhalder told EW. “There are too many animals that are abused, mistreated, and abandoned. They’ve been ostracized, they have behavioral issues, and they’re starving. It’s just unbelievable what we’ve done to the animals, and I think that’s why this is so important.

“If we can give animals a home, we can also take the youth of our country and our world — kids who have behavioral issues, bullying other kids, and halting the progression of those around them — and bring them together to learn compassion from one another. If you have compassion for an animal, then you’ll ultimately have compassion for another human being,” he says. “I’m so tired of the lack of compassion in our world and watching kids grow up in it. I think it’s an amazing opportunity for us to show that having compassion for one another — and all furry, scaled, or feathered creatures — is the only way we can progress.”

The online auction is currently live and open through July 18. You can place your bid here.

• After years of avoiding questions about his sexuality and personal life, Anderson Cooper revealed to the world that he is gay. The host of AC360 and Anderson made his official announcement in a letter to the Daily Beast, saying, "The fact is, I'm gay, always have been, always will be, and I couldn't be more happy, comfortable with myself, and proud." You can click here to read more of Cooper's letter.