It Happened 50 Years Ago: The 5th Dimension “Aquarius/Let the Sunshine In”

The 5th Dimension made thirty appearances on Billboard‘s Hot 100 chart, with twenty of those songs reaching the Top 40, seven hitting the Top 10, and two climbing to number one. Exactly 50 years ago, the first and biggest of the group’s two number one hits, “Aquarius/Let the Sunshine In,” which was also featured in the Broadway musical Hair, rose to the top of the chart for a six-week reign.