Cultural critic Wesley Morris wrote a smart essay on Mariah Carey’s decades-long dominance of the holiday season, but he did made a crucial mistake:
In case some of that went over your head, this should help clear things up. Here is Mariah’s spoiled-brat alter ego Bianca, fighting with regular Mariah in the music video for “Heartbreaker.” (God bless 1999.)
“Mimi,” on the other had, isn’t an alter ego at all—just a personal nickname (cf. “Emancipation of”).