The YBF Reports:  Nicki Minaj is battling everybody over her new "American Idol" stint it seems.  And the newest person she's going at is ex judge Steven Tyler...and she's calling him RACIST.

 We're not the only ones who think Nicki has no room to judge other people's talents.  But Steven Tyler said it on a public platform, and Nicki shot back via Twitter.  Of course.

Here's what went down--

The 64-year-old Aerosmith frontman and ex-Idol judge did an interview with MTV recently criticizes all the new judges.  And then he specifically named Ms. Minaj:

'You just have to give your opinion. It wasn't hard for me, but I would imagine it's hard for some people, and they need a manager to say 'Shut the f***up, and just give them your opinion.'

'If it was Bob Dylan, Nicki Minaj would have had him sent to the cornfield! Whereas, if it was Bob Dylan with us, we would have brought the best of him out, as we did with Phillip Phillips. Just saying.'