-

http://www.youtube.com/watch?v=TwXCmzwKdMo&feature=related

I lost myself listening to this.
Memory - Younha ft. Tablo

/edit Ahh, this one too, if you're fine with rap.
http://www.youtube.com/watch?v=_IB4eWBqVyk&feature=related
Pieces of You - Epik High