“With a track like 'White Christmas,' everybody has done that song in every format you can imagine, so I just looked at the chords at that particular song and what chords would make it work. That's kind of quite a sad song, and I had this idea of someone singing it in the subway, someone who is homeless, old and sad.”

“With a track like 'White Christmas,' everybody has done that song in every format you can imagine, so I just looked at the chords at that particular song and what chords would make it work. That's kind of quite a sad song, and I had this idea of someone singing it in the subway, someone who is homeless, old and sad.”

“I went on iTunes and looked at versions of Christmas songs. Everyone has done them!”