What dark stories are hiding behind some of music's catchiest one-hit wonders?

In Part 2 of our exploration of the darkest one-hit wonders in music history, Sam, Andy and AJ uncover the disturbing meanings, mysterious deaths, cultural events and personal heartbreak behind songs that became massive hits before their artists seemingly disappeared from the mainstream.

From the Cold War paranoia and nuclear anxiety behind Nena's 99 Luftballons to the mysterious death of Bobby Fuller, the unlikely spiritual darkness of Norman Greenbaum's Spirit in the Sky, and the bitter relationship breakdown at the heart of Gotye's Somebody That I Used to Know, we examine why dark songs can become unforgettable pop culture phenomena.

We also explore the strange wor ...