I thought it was a very funny choice since, as Molly said, the song was the "Bunny Hop". Yes, random, but Lois is known for having some crazy ideas and I thought this one fit perfectly. <g>
I haven't seen the ep recently enough to remember Penny hopping late, but theoretically, it should have been a conscious choice by the actress to do so, since I'm sure she and Teri must have rehearsed the scene at least a few times before they started taping.
Kathy
