Tips, Tricks and Tools To Help You Sing!

What song can I learn to sing and play guitar for this situation?

There was a girl that I asked out, but it didn't work out. Now she is dating someone else. I haven't seen her in a while and I really miss her. I want to learn a song I could sing and play for her that says I'm sorry and I miss you.

One of the best songs you could probably learn would be Better Together by Jack Johnson. It might take a little while, but listen to it and the lyrics and then make up your mind.