Maybe an unknown name to many, but a very clever part-time satirical singer/songwriter and full-time mathematics lecturer!
Here is a sample:-
http://www.youtube.com/watch?v=yhuMLpdnOjY
and you can find others on Youtube.
I just purchased "The Remains of Tom Lehrer" from Discurio in Hardware Street, Melbourne:-
http://www.discurio.com.au/catalogse...sult/?q=lehrer
I was ready to pay the catalog price of $35, but, wait, they are on special for $25! A Bargain! Contains every recorded Tom Lehrer song over three CDs plus a large booklet of information on Tom, the songs, the recordings.
Do yourself a favour!
(ps. On Youtube are several songs from a performance of Tom's from 1997 which are not on the CD set.)