Azealia Banks may be on her way to a successful career but she needs to learn the golden rule: "If you don't have anything nice to say, don't say anything at all." Banks has had some not-so-nice things to say about a number of people this year—Lil Kim, Kreayshawn. She fired two of her managers. But her Twitter war with Iggy Azalea and her mentor T.I. was Banks' biggest fail.

According to Iggy, the drama started last year at the CMJ Music Festival when Banks tweeted she had a song about Barbie before Nicki Minaj and a song called "Pussy" before Iggy. Then after Iggy made the XXL Freshman list, Banks criticized her lyric "I'm a runaway slave ... master" as racist. Iggy apologized immediately. When T.I. came to Iggy's defense, Azealia didn't have anything nice to say either. This fail is on Azealia Banks—focus on making your music before making enemies. Maybe she's learning; deleting her Twitter account was a good first step.