Most teens are into music these days especially mp3, ipod and even mobile phones are very affordable already. I've been seeing my teenage nephew with his headset on while listening to music and using the computer. Youtube is also great place where we can listen to music and videos and that is for free.
When he is not in front of his computer, I often see him listening music using his mobile phone. He just bought a new Samsung phone just last Sunday with his savings and he's been testing it non-stop and used it immediately. He enjoys music, computersgames and we're happy that he's not into bad vices.
I'm not quite sure what genre of music he is listening to but I'm sure it's not rock or heavy metal because it's not in his personality. I remember the days when we're growing up, my bro and his dad are playing guitars and drums similar to great Pearl Drums for they love rock music way back in the 70's.