Oprah Winfrey was reportedly annoyed by David Letterman's constant joking references to her name when he hosted the Academy Awards in 1995.
He later apologized, and she seemed to accept his apology via her song "Innocent."Model Amber Rose served it up to reality Khloe Kardashian on Twitter after Kardashian criticized her for talking about Kardashian's younger sister Kylie Jenner during an interview. go over well with fans of Australian boy band 5 Seconds of Summer."Let's just say I don't think they had any intentions for us to have a good experience doing that show," Carey reflected in a recent interview on Australian radio."Pitting two females against each other wasn't cool."When it comes to feuds, you could probably pair Azealia Banks up with any number of people -- particularly Iggy Azalea, with whom she's exchanged many angry tweets.Taylor Swift, left, and Nicki Minaj went at it on Twitter after the pop singer took offense at the rapper's comments about her exclusion from video of the year nominees at the MTV Video Music Awards.And as if it that wasn't enough, Katy Perry seemed to weigh in as well.