lol... I was searching the screenshot database at avatarspirit.net... saw this one and went "Wow, Sokka isn't pulling a weird face and actually looks kinda cute". Anyways... haha.
Avatar: The Last Airbender soundtrack - awatara Aang in the Spirit World | Kalimba cover (thumb piano) From the Book 1 (Water): chapter 20 (The Siege of the North, part 2)