Die Antwoord’s last album will be titled 27 (not the originally planned title, The Book of Zef) and is slated to be released “unusually over the next year or so,” the group announced via Twitter on Thursday (June 14).

In a series of tweets, they share details of 27′s coming, which include 27 songs with features from some of their favorite artists, mostly out of South Africa.

They also say the project itself will be released as 10 tracks in conjunction with a feature film they’re making with the same title as the album. The remaining 17 tracks will be “hidden in various places,” including one that will be on the b-side of a super limited-edition vinyl for the recently released “Alien.”

27 will be Die Antwoord‘s follow-up to 2016’s Mount Ninji and da Nice Time Kid.