If you were born on Thursday, December 31, 1942 then Please Don't Go by KC and the Sunshine Band was the number one on your 37th birthday, and went to number one on December 30, 1979. Check the price of Please Don't Go by KC and the Sunshine Band on Amazon.com
The biggest selling book of 1979 (the year you turned 37) was The Matarese Circle by Robert Ludlum.