Yakko was studying. Shut up, he was. He was reading through every entry in Wikipedia in chronological order, just in case he ever had to recite the entire thing as part of yet another song.
He was currently on
Don't Stop Believing. He was completely unaware that the song apparently had an unusual song structure. But that was probably because Yakko had absolutely no understanding of what the word "unusual" meant.
[OOC: Open door, open room, why not?]