The Rolling Stones are currently teasing a new album. Their official website now has a landing page featuring the phrase “Welcome to Hackney Diamonds.” On top of that, it features a countdown clock that’s set to expire on Wednesday, September 6 at 9:30 a.m. EST.

While anything new from the Stones is big news, there’s a big unanswered question: What do we even know about this LP? Fortunately, we’ve done some digging from our reporting from the past year. This led us to put together the list below, chronicling everything about this very mysterious album.

From potential guest appearances to behind-the-scenes details and everything in between, here are five things we know about the new Rolling Stones album.