Lemmings Face/Identity Reveal Theory

This is rather long:

I actually haven't read the manga yet, and have only watched up to the first 2 episodes of the second season so far, but I have a sneaking suspicion that Lemmings' identity will be revealed to be someone rather famous.

From the very beginning of the anime, one of the first things Polka/CG takes notice of in the modern world is an advertisement for an idol's new single. It's a passing remark, meant to show that CG is unfamiliar with this version of the world and how various things work despite a lack of magic, and is easy to brush off as *just* that — a passing remark with zero significance beyond the obvious; But you might have noticed how often that idol's face pops up.

Throughout the first season, he's shown in passing fairly often: billboards, street signs, I think he was in a page of a newspaper that one of the characters was reading at one point, etc... The fact that the studio took the time to not only showcase this seemingly random character so often, but also develop a song for him and give him a voice and *name*, when so many other passing characters do NOT feels intentional.
Then there's the fact that Lemmings hardly speaks (And of course is overly cautious in keeping their face and any other identifiable part of them hidden). If he were a well known singer, it would make sense for him to be wary of not only showing his face, but also making sure no one can recognize him by his voice or hair or even basic stature and physicality.
Lemmings typically wears a form-fitting but somewhat loose hooded jacket and trousers with combat boots which typically add 1-2 inches in height.

Lemmings has a "main job" (which they apparently asked Shinomiya Takeru not to interfere with) where it kind of feels like it doesn't have a "set" schedule meaning X-amount of hours on X-days throughout the week.
Lemmings is able to do all these shady jobs around the clock for ST, but ST (as per their agreement) will give them time off that doesn't interfere with their main job, and I think this matches well with a job as a singer/model.
There are times where you spend days or weeks on end, raking in the hours to do recordings, photo and/or MV shoots, commercials or talk shows or interviews etc...followed by long periods of sitting around and waiting for more jobs to come in when all those things are done.

Admittedly, I don't have any actual solid evidence to provide, but I thought this was worth mentioning since I found it curious how much I saw the idol appear.

Of course, Lemmings could be a mummy, which is a running theory I've seen other people talk about, but I do think it's weird that the animation studio would put questionable effort into a character that isn't REALLY a character, y'know? Like, the only people we see reoccur throughout the series, even in passing, have all turned out to be proper characters, not just another face in the crowd.
So even if Lemmings doesn't turn out to be the idol, I do think the idol will become more significant at some point.

Again, I haven't read the manga yet, so if this has already been proven false in any way, well...That was a waste of my and your time, sorry (￣∇￣")

I'm planning on watching the rest of the 2nd season when I get some time to do so, and then continue with the manga, so I might add an edit to this in the future if there's anything new I find. If someone has anything to add or disprove this, I'd be interested to hear your thoughts. Also, if you read this far, you're a great person with either a lot of time on your hands to read my baseless comment, or a lot of patience. Either way, thank you. You're a real one!