What Is Sabrina Carpenter Teasing In Her New Instagram?

We have just two days for whatever Sabrina Carpenter is teasing us all about to debut — and we’re no closer to finding out anything!

The “Thumbs” singer slipped fans a new Instagram video with what looks like a subway going through the tunnel with the date “February 10″ flashing on it — and the first thing we thought of was a video…but could that be it?

Since Sabrina is all over the country right now promoting her new single, “Thumbs”, from her sophomore album, it’s not totally out of the question.

But when JJJ did some more research, we caught wind of Sabrina and Machine Gun Kelly doing something with the Top 30 Countdown on iHeartRadio this weekend too.

So, what do you think it is? Is it a video? Or a collaboration? Let us know!