Infinity Train: Seeker of Crocus: Kaito Goshikida states a quote that says "You can't wait until life is hard until you decide to be happy", referencing the auditioner Nightbirde who stated a similar quote (and tragically passed away in February 2022).
In Like No Other Boy, Chris does an impression of Simon Cowell while he praises Tommy: "This kid floors me. He's got the voice, the moves, the talent, he's going to go far. Comes from Liverpool, does he?"