Rediscovered double Tom Lehrer performance of The Elements

This video of Tom Lehrer singing “The Elements”, in Copenhagen in or about 1967, is something we’d not seen before.

And it may be the only recording of him also performing the earlier version of the song — a performance so rare that that Tom himself later half-forgot about it (Tom generously gave us permission to have the song’s modern debut, at the 2011 Ig Nobel Prize ceremony, where Roberta Gilbert did the vocal honors):

BONUS: Daniel Radcliffe performing the traditional version of “The Elements” in 2010:

BONUS: The Internet now features recordings of Tom Lehrer performing other of his works.