Rhapsody and Napster have more than 2.5m paid subscribers

Rhapsody and its Napster brand have experienced thefastest growth period in its thirteen year history, spiking its paid subscriber number up to 2.5 million globally.

The growth isfueled by its partnerships with wireless providers andauto manufacturers like Telefonica,SFR, Vodafone, WIND Italy, and Audi, as well asthe launch of new internet radio products like the T-Mobile-introducedRhapsodyunRadio.Rhapsody unRadio subscriptions spiked to 67% over Christmas, a pace that continues in the first quarter.

The service boasted 2 million global subscribers last June, whichpaces annual subscriber growth at 60%.

Rhapsody's customer base are predominantly using the mobile app with88% exclusively listening on their mobile device – that's up 19% from a year ago. The company has alsosaid their users listen to 5 million hours of music a week.

Ethan Rudin, chief financial officer of RhapsodyInternational said in a statement:“Last year was a breakthrough year and it’s clear that streaming is here to stay. 2015 will be about showing the influence that streaming has in this new music industry, now that the average music lover understands what it means to have unlimited on-demand music in their pocket."

Rhapsodypurchased Napster from Best Buyin 2011;it'savailable in 30 countries across the US, Europe and Latin America and unlike market competitors itdoesn't have a free tier.

In December Rhapsody released itsyear-end data report, which showed itssubscribers contributed $750 million that year or$65 each in paid royalties – an average that'slower than that paid by popular services in Australia and in the US.