Posted 55 minutes agoSubscribe to BuzzFeed Daily NewsletterCaret Down19 Times Celebs Were So Rude, I'm Still Embarrassed For ThemJustin Bieber infamously left a rude comment on a picture of then-15-year-old JoJo Siwa's first car.by Kristen HarrisBuzzFeed StaffFacebookPinterestLink We've all had those cringey moments where we look back and think, "Oof, did I really do that?" Maybe you snapped at someone because you were having a bad day, or you rolled your eyes so hard at a comment it nearly gave you a headache.