Miley Cyrus' Instagram has been blacked out since this summer, until today. The RCA star seems to be teasing new music, expected to drop 11/29.

The profile pictures to all of her social media accounts have been changed to an image of a broken heart-shaped disco ball. A short video with that as its focus was also posted, and super-producer/artist Mark Ronson was tagged.

Remember what Ronson shared back in June: "The girl in this snap helped me write one of my favorite songs. Coming soon x."

So, is it just a Ronson single? Or could this be part of a bigger project? Deleting 6k photos and going radio silent for months seems like quite the gesture for one song, especially considering how wildly active Miley was known to be on social media.

UPDATE: A few hours after her first post, another had already appeared. It was also announced that Miley and Ronson will be performing on SNL.