Following his feature on Haim's "My Song 5" remix, A$AP Ferg continues his journey beyond the trap with a free-form feature on SBTRKT's groggy new track "Voices in my Head," which also features California band Warpaint.

The piano-laden Wonder Where We Land closer starts (and finishes) like a lost Fiona Apple cut before Ferg jumps in with a whacked-out Kid Cudi impression bookending his frenetic rapping. The women of Warpaint are known to explore the headspace themselves, so they're wisely employed here, with Stella Mozgawa handling the drums and Emily Kokal floating in with some chanting background vocals near the end.

"This is one of my fave tracks and seemed to be a fitting ending to the record too," SBTRKT writes of "Voices." "This started with me having a seed idea but seeing it grow way beyond that with these multi layers of collaboration and places. Shout to ferg, stella and emily for their input!"

Wonder Where We Land is out September 23 and also has cameos from Vampire Weekend's Ezra Koenig, Raury, and Chairlift's Caroline Polachek, making it one of our most-anticipated releases of the month.