Veteran British dance duo Underworld haven’t released an album since 2019, but they’ve been busy lately. Last year, Underworld played a bunch of festivals and released one-off singles like “and the colour red” and “denver luna.” Now, they seem to be cooking up something with Kettama, an Irish dance producer who’s been surging lately. (Just last month, we posted Kettama’s Real Lies collab “Purple Hearts.”)