That's right, Jan. I didn't know that either. In fact Simon did lots of musicals before he was a Wiggle, including the ones around Christmas time. Take Carols in the Domain in 1996 when he played Prince Charming from Disney's Snow White and the Seven Dwarfs before the Wiggles got their cue on "Go Santa Go". I suggest we'll keep an eye out for the extended version of the 1996 event of Carols in the Domain.
Here's a fun fact. The 1998 re-recorded versions of Wiggle Time and Yummy Yummy are the standard early videos but earlier around 1997, the Wiggles launched a movie called "The Wiggles Movie". The earliest of all was the video releases of "Wiggledance!" and "Wiggly, Wiggly Christmas" because of the debut of their updated logo.