: Grande’s powerful vocals—often compared to Mariah Carey’s—were the centerpiece, contrasted by Azalea’s high-speed rap verse.
: The track is famous for its sax-driven loop and whispered chorus , provided by an uncredited Big Sean . Ariana Grande Feat Iggy Azalea Problem Mp3
: Grande was initially hesitant about the "whisper" concept, preferring a belt-heavy chorus, but her producers convinced her it was the key to its unique sound. preferring a belt-heavy chorus