Instagram is a cruel mistress. One minute you’re happily choosing a filter, the next haters are blowing up your mentions with nasty comments. Sometimes it’s a simple misunderstanding — Demi Lovato probably had no idea she looked like an extra from World War Z — but occasionally it’s just bad judgment. Like Khia taking nude selfies in the bath and Justin Bieber documenting his binge drinking. Learn from the wayward behavior of your favorite pop stars (above).
Who had the best/worst Instagram fail? Share your opinion in the comments below.