Calamity in the Episode Title is spelt with a K instead of a C, probably to coincide with Karaoke starting with that letter as well.
Ally tells Dez that Flermy McGerbin has no letters in common with Austin's name, though what about the n that's in both Austin's first name and surname, and the i in his first name.
Austin at the Karaoke Contest never does notice Jimmy until Trish tells him after seeing "Can You Feel It" (without the echos). How could he have not noticed Jimmy walk in from the curtains and onto one of the back tables.
Austin and Dez at the start of the Episode never seem to know that they're only running on the spot, and that the T Rex on the Screen never seems to catch up to them.
How were Austin's Parents unaware of performing in Disguise, knowing well of him currently being banned by Jimmy? Could they've helped out. They rarely do appear anyway.
Does Austin at the end of the episode even realize that he's not wearing the top part of the Dinosaur Costume at the end of the piano, which could easily blow his new disguise?