If there’s one person who can call out a modern day pop star, it’s an 80’s rocker, right? Bon Jovi, known for his hair way before Justin Bieber was, is slamming the 19-year-old. Bon Jovi says Bieber is disrespectful to his fans, and uses some very choice words in an interview. Why? In March, Bieber was about two hours late for a concert in London. Bieber blamed technical issues.