Nicki Minaj Check Out Her ... Butt???

9/11/2014 2:25 PM PDT BY TMZ STAFF
0911-nicki-minaj-getty-02Nicki Minaj took a seat during her performance at Tuesday night's "Fashion Rocks" event in Brooklyn ... and if you know what's going on with her butt in this photo, you know more than we do.

She's definitely got buns, hun.