DESCRIPTION:
From the first day of 1970 through the last day of 1974, here is the first half of this decade's No. 1 hits in the USA, according to Billboard.

To travel through all three decades in order ('50s, '60s, '70s), here is your next link:
https://www.youtube.com/watch?v=xvRgFkaVngw

For titles, artists, and weekly charts, just go here:
http://en.wikipedia.org/wiki/List_of_number-one_hits_%28United_States%29

The slide show is some of the top stars of that decade, in alphabetical order (not intended to match up with the audio track).