(A flashback: Rock as a teenager waiting on a bus stop with his father who was showing off his cello and wearing a tuxedo.)
Rock: Dad! Do you have to wear that in public?!
Old woman: Oh, look! It's the famous cellist, (?) Zilla! Would you be so kind as to play me something?
Mr. Zilla: Certainly.
Rock: Dad! Could you be any less groovy?!
In this episode, Rock calls Willy his "boy" but his identity wasn't revealed about him being Rock Zilla's son.
We learn when Rock was born, he screamed like he usually does now. So that means that he was born with his talent.
It seems Rock still wore his rock star make-up when he was a kid.
We learn Rock's dad was a famous cellist.
The title of this episode is a reference to the 1995 film Mr. Holland's Opus.