"Secret Tunnel" is a memorable folk song from the episode "The Cave of Two Lovers" in the acclaimed animated series Avatar: The Last Airbender. Performed by the fictional band "The Nomads", the song serves as a humorous and plot-relevant element, teaching the characters (and audience) that "love is brightest in the dark". The catchy, campfire-style tune was composed by Jeremy Zuckerman, the series' primary composer, and has since become an iconic and beloved piece among fans of the show, often referenced in popular culture.