The 'My Day Be So Fine, Then Boom' meme features the character JFK from the cult classic animated series Clone High. The template typically shows a two-panel sequence or a video clip of JFK sitting in his car, expressing how wonderful his day was going just before a sudden, unwanted event occurs. It first exploded in popularity on Twitter and TikTok in 2020 as a relatable way to depict how quickly a good mood can be ruined by minor inconveniences, social anxiety, or unexpected news. The meme’s longevity is fueled by JFK's unique voice and the universal human experience of having the 'vibes' instantly destroyed by reality.