Pandora remains the most popular streaming music service by far in the US, according to the latest research from NPD Group.
It estimates that Pandora’s free version was used by 39% of 13-35 year-olds in the US in the final quarter of 2012, well ahead of rival iHeartRadio’s 11% penetration.
Spotify’s free version was used by 9% of this demographic, with Grooveshark on 3% and services including Slacker, TuneIn, Last.fm and Xbox Music all fighting for scraps on 2% apiece.
What’s just as interesting is NPD’s breakdown of how 13-35 year-olds were listening to music in Q4 though. Traditional AM/FM radio remains the most popular form, but only just – accounting for 24% of music listening among this demographic, compared to 23% for internet radio.