What is happening?!
Green Day are up to something. They've started teasing... something.
All three members have just posted the exact same image to their instagram feed, and made their personal accounts private.
The photo in question looks to be of a bull? And if you swipe through, they've all also each posted a photo of one another.
Check out the insta posts below.
As yet, the band account hasn't posted anything. But keep your eyes peeled.
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