Bebe Rexha has revealed that she has been working on a demo for BTS.The New York singer-songwriter, who released her debut album ‘Expectations’ in 2018, shared the news during a recent Instagram Live broadcast.Rexha explained in the video, which you can watch below, that the song is “a mess” in its current form, adding that she needs to “clean it up”.“[BTS] haven’t heard it, it’s not a song for them,” she continued.