Billie Eilish seemed to speak some truth at the People's Choice Awards this weekend -- namely, openly wondering why a bunch of social media "stars" were among real A-listers.

The singer was filmed chatting with Kylie Minogue behind the scenes at the award show in L.A. Sunday -- and she could be heard pointing out that there was a crap-ton of TikTokers in the building ... something she didn't look to be a huge fan of.

Watch ... BE was sitting next to KM when she made the observation -- and once she realized she was being filmed, she tried to cover up how she felt about it, unsuccessfully.

Billie could be heard noting there were some TikTok heads "over there" ... she then grimaces, shakes her head and says something to the effect of "I don't need it." Now, in terms of who exactly Billie might've been referring to, there's only a handful of suspects.

There really weren't a lot of TikTok/social media personalities on hand at the show -- and they did seem to be more filled with actual Hollywood types (mainstream actors/musicians) than viral people. But, among those who have a huge following ... Tana Mongeau, Chris Olsen, Gigi Gorgeous, Alix Earle, James Charles and maybe a couple more here and there.

That's what makes her remarks so funny ... even with the small handful of TikTokers, it was still enough to rub Billie the wrong way -- and we gotta admit, she ain't really wrong here!