Nicki Minaj appeared to be in a bad mood, possibly because she and her wig stylist for many years, Terrance, have parted ways. We’re not sure, but maybe that’s why she looks like a sourpuss. While in Los Angeles for the premiere screening of Fox’s “American Idol,” Minaj hit the carpet wearing a Nolita asymmetrical colorblocked bandage dress from designer Herve Leger along with a pair of Christian Louboutin black lady daf heels. We hope she cheers up soon. Check out more photos after the jump.