I tend to just listen to my own music :] This would consist of Gorillaz or Blur mainly... Or I'll pull up the occasional random artist, like Rise Against, or Ellie Goulding (I've been obsessed with her song 'Lights' lately...)
Sometimes I'll put on MCR and 30 Seconds to Mars, as those are what I'd listen to a lot back when I played Impressive Title, and I like the nostalgic feeling it brings!