This was sung by Lacey Chabert as Dizzy Dana. It is a 50's styled, novelty song in B-Flat major, running at 161 BPM.
Dana: Hello, how are ya? It's so good to see ya!
Join me on the Dizzy Dana show! Come on, let's go!
I've got Dizzy Donnie, my brother, on my side.
Both Dana and Donnie: From us you cannot hide...
Dana: Here we go with the Dizzy Dana Show!