This website http://www.joshhosler.biz/numberOneInHistory/selectMonth.htm: will tell you what the number #1 song was on the day you were born.
Here's mine: Locomotion by Grand Funk Railroad
Here's Steve's: Duke of Earl by Gene Chandler
Here's Sarah's: All My Life by K-Ci & JoJo:
Embedding wasn't allowed for this video, so here's the link. I love this song: http://www.youtube.com/watch?v=SdJiF4ShkoM
Here's Sascha's: Maria Maria by Santana (another good song)
Apollo's song I haven't even heard of:
This Is Why I'm Hot by Mims.