I don't really look at the charts at all. If anything, I try to out-do what I've done before. I try to make music that I like and I trust my own judgement with what will work with a wider audience. If you compare yourself to the charts, you lose perspective on what you're doing and why you're doing it.
AviciiI grew up listening to a lot of Ray Charles and '60s rock, thanks to my father, and then my brothers got me in to KISS and whatnot, so I guess that's where I got my first taste for music.
Avicii