Last.fm is a music service that records what users listen to, builds a listening history and uses it to recommend new music and events. The service is operated by Last.fm Limited, a private limited company registered in London and incorporated in 2002. It is used through the website.
CBS acquired Last.fm in 2007, and the service later became part of the Paramount group, which subsequently became Paramount Skydance. In May 2026 the company announced that its ownership had changed and that it is independent again, but the new owner is not named publicly. The privacy policy states that the company is based in the United Kingdom and that personal data may be transferred to the United States under standard contractual clauses. The service is not open source and cannot be self-hosted.