It's never a good idea for a reality show judge to get into a war of words with an ousted contestant.But that's exactly was has happened to "American Idol" judge Nicki Minaj.Following the dismissal of Devin Velez last week the rap diva has taken to Twitter to explain her side of the story. It all began last week when Minaj was critical of Velez,Lazaro Arbos and Burnell Taylor for their group performance of the Four Tops song  " I Can't Help Myself" after the guys stumbled through the lyrics,Minaj ordered all three to leave the stage saying " i'm gonna act like i didn't see that or hear it" Velez shot back by saying"I Agree with the first half of her critique but whoa Miss Minaj calm down please" "Like we're still humans,we have feelings.She doesn't care sometimes" Velez also  said about Minaj's judging style "She has multiple personalities.....you never know what you are gonna get from her" On Twitter Minaj fired back " Lol . Be mad@America when you get sent home, The JUDGES are the ones who FOUGHT for America to get the opp to VOTE 4 U!!! And so it goes ready for this week's 'iDOL ?