Noel Gallagher Acoustic, simply amazing, his voice is so relaxing, but can still make you rock out when ever you need to also, some of my favourites, Wonderwall, Don't go away, Don't look back in anger, and Supersonic, I could go on and show more, but there is loads.
There's a band called The Courteeners from Manchester, and the lead singer Liam Fray has a nice voice, here's him doing a live version of one of his songs, it's really good.
Kasabian, there is one song by them called British Legion, it starts of really quite relaxing, and is an amazing song, everybody should check out Kasabian, very good band.
Love me tender by Elvis Presley, there is also loads more relaxing songs done by Elvis, but check him out, Elvis was brilliant. And his cover of Unchained Melody sends shivers down my spine everytime I listen to it.
Keep in mind that these are songs I find relaxing, and don't care if you don't like them. ;)
