How serious is this event? Could you get away with a funny song that might, possibly, at a str-e-e-e-tch, sorta-kinda-almost be on-topic?

If so, try The I.P.D. (the male equivalent of the I.U.D.) or Mark Graham's I CAN SEE YOUR AURA, AND IT'S UGLY.

If you need to keep it serious...
Do you live in the US? Are you familiar with Rise Up Singing?

If you have a copy, (or if you have a friend who has a copy) check the "Men" section; it has quite a few songs that look like they might well be suitable.

If you don't have access to a copy & don't have time/money to order one (you don't mention how soon you need this song), here is a link to Peter Alsop's website, and another to the lyrics for his song LET THE WOMAN IN YOU COME THROUGH.

Sorry, don't know the tune, but I expect you can prolly purchase it from Amazon or iTunes as a download, or even buy the cassette it is on ("Asleep at the Helm" along with a load of other suitable songs; see below), here .

Here's the "blurb":

CASSETTE - Asleep At The Helm - Fun Gender Songs!
[MS034]        $5.00

INVESTIGATES OUR SEXUAL RELATIONSHIPS BY LOOKING AT OURSELVES

Includes:
Asleep At The Helm - a man waking up to his shortcomings
Doin' It For You - male chauvinist explains his behavior
Good Time - the sexual chase, the score, the emptiness of the game
You Make Me Stand In The Corner - male codependent who needs a female fix
Ghosts - the sadness of breaking-up because of missed communications
Let The Woman In You Come Through - exploring our androgyny
When You Ask Me First - a man losing control in the bedroom
The One About The Bird In The Cage - Ruthie Taubb's song about a woman breaking free
The Young Woman Disco - a woman learns options she was never taught
Lists - uninhibited, non-sexist love song

*** most of these songs can be found in digital format on Peter's double CD - SONGS ON SEX & SEXUALITY ***

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His website seems to have the lyrics for all of his songs, so you can prolly find lyrics to all the songs listed above (and dozens more) pretty easily...

Also in the R.U.S. "Men" section are a 2-3 of suitable songs by Geof Morgan, who is another fellow who writes a fair few songs on this (& similar) subjects. I did a quick Google on him and didn't find anything that looked particularly helpful, but (depending how desperate you are), you might well find something I missed.

Hope this helps. Good luck!

YY