This is the climactic scene from the very enjoyable movie Once (made on a shoe string budget). A street performer has saved up enough money to finally get some studio time and basically sings for his life in this scene as the woman he is falling in love with plays the piano. Depending on your computer you might need to turn up the volume some.
The following is a video for the movie into the wild (based on the book by jon karkuer), directed by sean penn and with music by eddie vedder. When I watched it I definitely got the urge to drop everything and go lose / or find myself in nature the way he did.