The October 1st TikTok trend is about the coming of fall and particularly about falling in love in the fall. The trend involves setting your video to the song "we fell in love in october" by girl in red. The song has been popular on TikTok for a while now, particularly in the WLW (women loving women) community, and people are now hoping that someone will make a video about them using this audio on October 1st. The trend is not new, but it has popped up again in 2023 and is causing confusion. TikTok users have been known to make specific dates go viral for random reasons, and October 1st is the latest date to start trending.