Generations collide as Adam Lambert duets with '80s queen and LGBT activist Cyndi Lauper for 'Mad World' in this fan-filmed footage.

Lambert and Lauper teamed up for an emotionally rousing rendition of the track. It was a beautiful performance as their voices interlaced.

In this footage, the camera focuses squarely on Glambert, who is growing out his formerly platinum blond locks, making it look like he has blond tips, up until about the halfway point.

Lauper reaches out her hand and they perform with their hands clasped for a few moments, making it a tactile performance, as well. Their chemistry just crackles, and their voices are supreme.

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