Iggy Azalea
The Aussie star is known for having thick skin and quick wit to match. She's had a lot of hate in her time on the stage and a lot of beef with other famous artists. She's also known for participating in social media fights among random non-celebrities. A lot of people seem to have issues with her... Nowadays, she's further off the radar, mainly because she butts heads with almost everyone on social media, fans and other celebrities alike. She's had fights with stars like Zayn Milk, RuPaul, and Azealia Banks (which isn't hard to do, really).