Gosselin and the kids shop at Party City for the sextuplets' belated birthday bash
Credit: Winslow/Turgeon/Splash News

The show – and the party – must go on, and Kate Gosselin made sure that happened over the weekend.

Outside Saturday, her minivan and two cars affiliated with the TLC show Jon and Kate Plus Eight were trailed by about five cars filled with paparazzi to the Party City in Reading, Penn., where she and all eight Gosselin kids shopped for supplies.

Kate kept the brood in line while buying streamers, balloons, plastic trays, candy and two Backyardigan piñatas. The celebration? A one-week-belated fifth birthday party for sextuplets Alexis, Hannah, Aaden, Collin, Leah and Joel at The Blue Falls Grove Water Park on Sunday.

While Jon was at the birthday bash – as were twins Cara and Madelyn – he skipped the shopping outing but was spotted picking up the sextuplets at pre-school on Friday.

The new season of Jon and Kate Plus Eight debuts Monday, May 25, and it remains to be seen how the show will address the recent problems with the couple’s marriage.