It's about the parts of The Wiggles flies into the empty logo.
These are the Wiggles videos including Big Red Car, The Wiggly Big Show, Toot Toot! (re-release), Wiggly Wiggly Christmas (re-release), Yummy Yummy (re-recording), Wake Up Jeff! and Wiggle Time (re-recording).
A box of Wiggles videos fly around when songs are shown on each video.