Spotify may be planning to further expand its music streaming offerings, as the company is reportedly working on a free mobile music service.

Streaming music services have become very popular in recent years and Spotify is among the top in its category. With numerous users worldwide, the company seems to be poised to attract even more adopters with a new service.

According to a new report from the Wall Street Journal (WSJ), Spotify is looking to offer a new mobile music service that would be free. As expected, such a service would be supported by ads. The WSJ further notes that Spotify's free mobile music service would focus on a personalized radio experience similar to Pandora or Rdio, allowing users to play a limited number of tracks on demand.

Currently Spotify does offer a mobile streaming service, but it is only available to premium users for now. The free version Spotify is offering at the moment is for computers, not mobile devices.

According to the Wall Street Journal report on Thursday, Dec. 5, Spotify has already sealed several deals with major record labels for this free mobile music streaming service. Such labels include Warner Music, Universal, and Sony Music.

The company is reportedly getting ready to hold a press event on Dec. 11 in New York. Spotify is expected to unveil this new free mobile streaming service at that event, which means that more details will become available next week.

For now, however, nothing is certain. Keep in mind that Spotify has yet to announce such a service, which means that it remains in the rumor state for now. As always, it is advisable to take all leaks, rumors, and speculation with a grain of salt until official confirmation.

Spotify is among the most popular music streaming services currently available on the market, and a free mobile music service would certainly attract more consumers. It would make sense for the company to move in this direction, especially with heavyweights such as Google and Apple now aiming to compete on this front. With Dec. 11 just one week away, we'll soon know more about this purported service.