I have had this song stuck in my head ALLLLLLLL night. Like, seriously. The kind of song itch that won't leave, no matter how many times you listen to it, over and over again. But I mean that in a good way. ^_^
"Little Lion Man" by Mumford and Sons.
And here is another one.... I have a big weakness for acoustic raw songs.
"Black White Page" by Mumford and Sons