i have never thought about this, but i got it in an email. amazing.
http://www.thisdayinmusic.com/member/birthdayno1.php
oh, and btw, mine was "the supremes - baby love".
not very appropriate, i don't think.
something a little heavier would've worked.
oh, and if you were born before 1955, they say to try and see what song was #1 on your 18th birthday. i don't think anyone here was born before 1955, right lee?