Jon on Father's Day: "I Don't Know" Where Kate Is

Sun., Jun. 21, 2009 8:12 PM PDT by Brandi Fowler

While celebrating Father's Day at home, Jon Gosselin spent his time eight-deep in kids, but his mate Kate was nowhere to be seen.

The family spent the majority of the day playing in the front yard of their Reading, Pa., home. In between bike rides, lacrosse games and trips around the yard on an ATV, Jon walked to his fence and signed autographs for fans.

"Jon was in a great mood," a source told E! News.

The usually tight-lipped dad even answered a few questions for media gathered near the home. Jon confirmed that Aaden cut his head yesterday and had the wound glued shut. The bandage-free sextuplet was playing in the yard with his dad that day as well.

When Jon was asked if he was moving to New York City, he said, "You'll have to watch the show." Jon shrugged his shoulders when questions about Kate's whereabouts arose and said, "I don't know."

Fans of the hit TLC reality show won't have to wait long to find out more about the inner workings of the Gosselins. The family's highly anticipated "big announcement" episode airs Monday.

—Reporting by Ken Baker