Ariana Grande
The Nickelodeon star turned pop star has had her fair share of controversies. Remember that one time she licked a donut then put it back? Yeah, not cute. There's also something else that some fans couldn't turn a blind eye to...
Uncaring Towards Fans
A lot of fans had a problem with one of her meet and greets in 2013. Apparently, the singer only spent around 15 seconds with some competition winners before heading back to her green room. Her team cited it as a "safety hazard" but the fans involved said that she just didn't want to be there. That's pretty hurtful!