Mission One’s Commentary:
Triple was not E.
A capital red “E” designates explicit lyrics in iTunes.
I didn’t get Mission One’s joke at first, maybe because most of what I listen to these days is game music…
ETA (07/27/19): Whoops, it seems like I didn’t get the joke twice! The red “E” is a pun meaning “ready” that was used in some very early marketing for the original PlayStation; see the second and third paragraphs here for more details.