"secretly, max martin has always my musical hero since "slam dunk da funk" (haha, but seriously tho) and...
just wanted to say, its awesome getting to work with someone & have them not disapoint in anyway, so thanks max and team! youre all awesome"
https://twitter.com/IGGYAZALEA/with_replies
She was also with Savan Kotecha, probably for the same thing.
Not sure if this was for new music that's coming soon but people were speculating this
could be for Ariana Grande's new album since she's also been in the studio with him and Iggy's album is done.