On July 4, 1970 Casey Kasem hosted “American Top 40” on radio for the first time. I cannot tell a lie; in high school I spent every Sunday afternoon listening to Casey Kasem count down the top 40 songs on Billboard’s Hot 100 Singles chart each week.

The first #1 song on American Top 40’s inaugural 1970 broadcast was “Mama Told Me Not to Come” by Three Dog Night.