(SOUNDBITE OF SONG, "ANOTHER BRICK IN THE WALL, PT. 1") PINK FLOYD: (Singing) Daddy's flown across the ocean... DANIEL LEVITIN: They probably chose Pink Floyd because they're at UC Berkeley.

The legendary artist is selling his entire Pink Floyd archive through the San Francisco ... And, very kindly, he sent me a VHS or DVD of him having the tattoo done onto his arm with my signature.

Today, The Wall stands as one of the best-selling albums in history, with over 24 million copies sold. It remains a touchstone for fans and artists, proving that great art transcends time .

Part of what makes Pink Floyd’s “Another Brick in the Wall Part 2” so impactful is the vocals from a real-life children’s choir. Something about hearing, Hey, teacher, leave us kids alone ...