Fall Out Boy look to be up to something.

The band posted a mysterious tweet this morning, asking Chicago to “please silence your cell phones at 11 a.m. CST.”

Read more: The 27 best reactions to Paramore's cryptic teasing

The tweet came accompanied with video and a link to Instagram.

On the Instagram post, there are a list of addresses.



A post shared by Fall Out Boy (@falloutboy) on

Pop one of those addresses into Google, and you find a movie theater.

So, what's going on?

Well, we're not sure—BUT it's been over two years since Fall Out Boy's last album, American Beauty/American Psycho, dropped. New music? A tour?

No matter what it is, fans are in an absolute frenzy.

And it appears artists are in a frenzy, as well.

Tell us your conspiracy theories in the comments.

Watch more: APMAs Blackstar Backstage Artist Lounge—Fall Out Boy interviewed by Keith Buckley and Jason Butler