Online music streaming service Spotify said on Wednesday its global paid subscriber base had swelled to 10 million as speculation mounts the Swedish start-up could be gunning for a share listing. 10 million subscribers is an important milestone for both Spotify and the entire music industry, said Daniel Ek, CEO and founder. Were widening our lead in the digital music space and will continue to focus on getting everyone in the world to listen to more music. It saw its paid subscriber base jump from a previous 6 million, as reported on its website, thanks to strong demand for songs from the likes of Eminem – the music services most-streamed artist of all time – and Rihanna, its most-streamed female artist.