There was a marked difference in the two birthday parties Jon and Kate Gosselin threw for their sextuplets this year. On May 10, the children's 5th birthday, the celebration was somber. Kate was spotted with an angry expression on her face while picking up a meager-looking cake at a bakery near the family's Reading, Pa., home early in the day. Few people were spotted coming and going from the house, and at the end of the day, just a few bits of wrapping paper lay in the trash.

A week later, however, the scene was different. With the cameras rolling for their TV series, Jon & Kate Plus 8, the entire family -- as well as a large group of friends -- drove to nearby Blue Falls park, where Kate went all out for a second birthday bash on May 17. This time, she pulled out all the stops: There were piñatas, balloons, even a set of moon bounces for the kids to jump on. "Jon looked like he really didn't want to have anything to do with the filming, but Kate was all about it," an onlooker tells Life & Style.

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Photo Credit: Courtesy of TLC