High Quality Content by WIKIPEDIA articles! Deezer is a free music streaming service based in Paris, France. Deezer was launched on August 24, 2007. Deezer has negotiated rights to make 165,000 songs available for streaming legally via an agreement with Sony, as well as some of Universal`s catalog. After its launch, there were legal issues relating to the uploading and sharing of music on Deezer, but this was resolved when Deezer updated its site on 9 February 2009.