Not too long back we received a trailer for Jay Z’s new album 4:44. We also got a quick listen to one track from the album, “Adnis,” which got some airtime during a commercial promoting the partnership between Sprint and Tidal.

We know the album will be released Friday, and we have a feeling some of the biggest names in hip-hop will bless the credits, but there isn’t all that much more that we know. 4:44 remains largely a mystery. For every bit of information we currently have on the album, read this.

We’re grasping at straws for every bit of insight we can find into the album, and we got a little more information this weekend. Jeymes Samuels of The Bullits went on Instagram Live and shared what appeared to be visuals from 4:44.

Photos from the post show a number of well-known actors—Jesse Williams, Emile Hirsch, Ron Perlman, and Johnathan Tucker—in a prison scene.

We had a hint Hirsch would be involved, as he previously posted a photo from the set (and shouted out Jay Z) before deleting it.

It’s a little hard to see, but notice that each of the prison numbers ends in “444.”

Samuels, who appears to be the director, has connections to Hov. He worked with Jay Z on the soundtrack for 2013’s The Great Gatsby.

As part of the Sprint-Tidal partnership, Sprint stores across the United States will host listening parties this Thursday.