Miley Cyrus and Ariana Grande have a lot of common. That's why they have good friendship and had collaboration few times before.
Both of them used TV platforms as foundation to build their singing career. Miley Cyrus was on Disney while Grande was on Nickelodeon.
Both were the coach for The Voice. Both of them joined with Lana Del Rey for the song “Don’t Call Me Angel” for the Charlie’s Angels movie soundtrack.