There have been a lot of surprises in 2016 so far when it comes to hip hop, and Big Sean and Jhené Aiko don’t want to be left out of the fun.

Sean celebrated his 28th birthday over the weekend and decided to celebrate by announcing a joint album with the L.A. songstress called TWENTY88. The cover art for the project was revealed but details beyond that are scarce. We know do know that it's slated for an April 1 release.

Big Sean and Jhené Aiko have a history of collaborations including songs like “I Know” and “Beware,” and each has labeled one other friends in the past. The Detroit rapper also dropped a new song on Saturday (March 26) called “Get My S**t Together,” so it sounds like Sean Don SZN is in full effect.

Check out a couple of teaser videos for TWENTY88 below.

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(Photos from left: Christopher Polk/Getty Images For EIF, Noel Vasquez/Getty Images for Hennessy V.S)