A method in a M2M communication network comprising a Music Player Unit, a M2M Network Node and a Speaker Unit, the method comprising: - connecting (2:9) the Music Player Unit to a Mobile Device in the proximity; - receiving (2:10), in the Music Player Unit, a Music Playlist (101,402) from the Mobile Device; - sending (2:11), from the Music Player Unit to an Application in the M2M Network Node, the Music Playlist and a Music Player Identifier, wherein the Music Player Identifier identifies the Music Player Unit, - associating (2.12), using the Application, the Music Player Unit to a Service Subscriber having requested a service subscription for the Application, wherein association of the Music Player Unit to the Service Subscriber is done by utilizing the Music Player Identifier and a Service Subscriber Identifier, wherein the Service Subscriber Identifier is assigned to the Service Subscriber and identifies the Service Subscriber, and further by comparing the Music Player Identifier and the Service Subscriber Identifier; and wherein the Service Subscriber Identifier is assigned to the Service Subscriber based on a request for a service subscription for the Application from the Service Subscriber; - determining (2:13), using the Application, the popularity of the songs included in the received Music Playlist, wherein the popularity is determined based on the occurrence of the songs in the M2M Music Playlist and the received Music Playlist; - receiving (2:14) in the Music Player Unit information, from the Application, information about the popularity of at least one song comprised in the received Music Playlist; and - playing-out (2:15) the at least one song using the Speaker Unit. - connecting (2:9) the Music Player Unit to a Mobile Device in the proximity; - receiving (2:10), in the Music Player Unit, a Music Playlist (101,402) from the Mobile Device; - sending (2:11), from the Music Player Unit to an Application in the M2M Network Node, the Music Playlist and a Music Player Identifier, wherein the Music Player Identifier identifies the Music Player Unit, - associating (2.12), using the Application, the Music Player Unit to a Service Subscriber having requested a service subscription for the Application, wherein association of the Music Player Unit to the Service Subscriber is done by utilizing the Music Player Identifier and a Service Subscriber Identifier, wherein the Service Subscriber Identifier is assigned to the Service Subscriber and identifies the Service Subscriber, and further by comparing the Music Player Identifier and the Service Subscriber Identifier; and wherein the Service Subscriber Identifier is assigned to the Service Subscriber based on a request for a service subscription for the Application from the Service Subscriber; - determining (2:13), using the Application, the popularity of the songs included in the received Music Playlist, wherein the popularity is determined based on the occurrence of the songs in the M2M Music Playlist and the received Music Playlist; - receiving (2:14) in the Music Player Unit information, from the Application, information about the popularity of at least one song comprised in the received Music Playlist; and - playing-out (2:15) the at least one song using the Speaker Unit.