David as a shepherd boy became a man after God’s own heart because he worshiped God with a new song each day. He opened his mouth wide and God would fill it.
Here is a great way to find Christian Radio Stations in your area:
http://www.christianradio.com/stations/
The Pandora mobile devices provides some random songs, but often the lyrics are not as good as worshiping to God yourself.
http://www.mypraize.com/