AMF has announced its official anthem for 2025: ‘Put Your Bassline’, a debut collaboration between Armin van Buuren and KI/KI. The track will be released on October 24, one day before the pair’s back-to-back performance at AMF, in collaboration with 750 Years of Amsterdam in the Johan Cruijff ArenA. ‘Put Your Bassline’ is the first official AMF anthem co-produced by two headliners. The track combines Armin van Buuren’s trance influences with KI/KI’s underground sound, reflecting the contrast that defines this year’s II=I performance. Together, the two artists explore the connection between their different musical backgrounds and approaches to electronic music. Their first B2B took place two years ago during ADE, and this year they’re reuniting for the II=I concept, with their new track serving as the official anthem.