The St Louis lo-fi band wrote in Instagram that they had been working on music with the "Wrecking Ball" singer.
"Been off the grid with Miley and Jesse working on new tunes! Thanks to anyone still hanging around new jams soon!!!," the band's Instagram post read.
"We wrote a song together that we are going to be releasing as stepfather in the next couple of weeks as well as music for her upcoming project," they posted on Twitter.