She's a pop star; she's allowed to dress like that. The others either have a more serious profession (Lupita is an actress) or are randoms and unknowns who couldn't pull it off.
Doesn't she abandon pop music like every year tho? She's always like "Luke made me do it!" "He's holding me against my will!" but then a few months later, she gets a big dance-pop hit again.
She's uber fake! Lol at anyone falling for her "artistic integrity"
