Whether you're fluent in the art of thumbs up-ing and subscribing, or whether you're totally clueless when it comes to the YouTube bubble, you've probably spotted the scary hashtag #savemarinajoyce that's been trending on Twitter all night.
YouTuber Marina Joyce has sparked huge concern amongst fans (and now the wider internet), who've been left concerned for her well-being and whereabouts after a string of upsetting and disturbing behaviour in her most recent videos.
Once you start delving into the hashtag for an explanation as to what's going on with Marina, things can get pretty scary, with a huge range of fan theories covering everything from kidnapping, to an abusive boyfriend, to excessive drug use and even terrorism plots.
Concern for Marina began a while back now when her usually funny, bubbly and relatable videos turned into something very different - with her behaviour seeming erratic, confused, panicky and generally pretty weird.
If you want a seriously full run-down of what's been going on, you can check out this extensive post by a fan charting every moment in her vids that have sparked concern, but here's a brief overview as to the main points that are currently circulating.
Marina's deleted comment
In response to one video showcasing Marina's strange new behaviour, a concerned viewer asked if she was okay in the comments section. She answered, "yes :)" but then quickly added "no" in a now-deleted second reply.
Huge bruises in her fashion video
Screengrabs showing bruises on Marina's arms, which many fans have claimed look like markings from a firm grip, are all over Twitter this morning after her viewers spotted the dark patches all over her during her most recent (and totally bizarre) fashion video.
Although this is completely speculative, many fans are claiming that Marina's increased erratic behaviour in videos has also come with a handful of moments in which she appears to look alarmed by something off camera.
Someone behind the camera
In her seriously awkward and uncomfortable video advertising a clothing line, fans are suggesting that there is two major signs for concern. First, a hand reaches out on the left side of the screen, appearing to be holding a script, which is a total contrast to Marina's usual off-the-cuff video style.
Fans also claim to hear a whispered, "Help me" within in the first 20 seconds of the video below - an alleged cryptic message which has apparently popped up in a couple of other posts to her Youtube channel. Scary.
Worryingly, numerous other arguments, claims and suggestions are now surfacing across social media regarding Marina, as fans grow more and more panicked for her safety - particularly after she simply responded to the whole thing only by inviting fans to a "party" in London.
The more you look into the hashtag, the more frightening the possibilities become, but while Marina's safety is the ultimate priority, it's important to remember just how quickly drama and scaremongering can snowball online.
A prime example is the community post which quickly popped up on Buzzfeed amongst the chaos, falsely claiming that Marina had been found dead.
However, a Twitter account purporting to belong to Enfield Police (it's not verified, annoyingly) tweeted in the early hours of this morning to confirm that they had been in contact with Marina.
What are your thoughts on all of this? Let us know with a tweet to @Sugarscape.