In 2022, US President Donald Trump and UK Prime Minister Rishi Sunak faced public scrutiny over the background music used in official videos promoting their political agenda. Press articles and social media users claimed that the library (or ‘stock’) music heard in the videos consisted of so-called ‘soundalikes’, and questioned whether this choice was a public endorsement of problematic individuals or groups connected with the tracks in question: namely, conspiracy-theory movement QAnon, and convicted rock singer Gary Glitter. This article explores how library music is used strategically in these videos, highlighting the urgency of inquiring into its fundamental role in the construction and dissemination of political messages in media today, with moral and ethical implications that remain underresearched. Departing from these cases, the article also examines how library music, a once unseen musical practice, is now reaching the foreground of public attention, gaining unprecedented visibility due partly to its use in politically motivated videos. This allows us to rethink longstanding notions of library music as something that lacks a public existence, and to focus instead on what happens when it gains media coverage – prompting misunderstandings that reveal how unfamiliar the wider public is with the workings of this industry.