Spotify is experimenting with “token-enabled playlists,” meaning users in possession of non-fungible tokens (NFTs) can connect their wallets and listen to collections of music put together by the likes of Overlord (a company developing blockchain-based games) and KINGSHIP (Universal Music Group’s Bored Ape band). Android users in the United States, United Kingdom, Germany, Australia and New Zealand can now test the new feature.

“At Spotify, we routinely conduct a number of tests in an effort to improve our user experience,” a spokesperson for the streaming platform said in a statement. “Some of those end up paving the path for our broader user experience and others serve only as important learnings. We have no further news to share on future plans at this time.”

Spotify CEO Daniel Ek discussed blockchain technology — which enables the creation of unique digital files that are also uncopyable — on the Culture: Now Streaming podcast in 2019. “The most important thing is it will enable paying for things digitally in many of the places around the world where those kind of methods just doesn’t exist,” Ek said. “A service like Spotify, you can imagine what would happen by allowing users for instance to be able to pay artists directly. That can open up massive opportunities where all of a sudden, a user in Japan might pay a creator in Argentina. And that opens up huge opportunities for how we can further our mission.”

Last year, Spotify started allowing “a small group of artists [to] promote their existing third-party NFT offerings via their artist profiles,” according to a statement from the company. (At the time, Spotify reiterated that it “routinely conduct[s] a number of tests in an effort to improve artist and fan experiences” some of which “serve only as an important learning.”)

Steve Aoki and The Wombats were among those testing the feature, which was made available to Android users in the U.S.