I just happened to go on soundcloud and see this track! I used to be a massive Avicii fan but his recent stuff hasn't really impressed me. When I heard this I immediately fell in love. I don't know what it is, I wouldn't even generally listen to something like this but it just got me moving.
Avicii:
http://soundcloud.com/aviciiofficial
http://www.avicii.com/
https://www.facebook.com/avicii
https://twitter.com/#!/avicii