Here's what Jessie had to say about this scene when it was first released in 2013:

After discovering a difference of taste in music in a Facebook conversation, I decided to find out just how different our music tastes were. Cherry wrote a list of some of her favourite bands and musicians and if I didn't like them, I got pied! Considering out friendship, we don't like a lot of the same music! Good taste or bad, it's all a matter of opinion!

In this second part it's Cherry who gets pied for any non-matches, and there are plenty (and Cherry even gets Jessie with the final pie at the end!).