September 21, 1968: An eclectic gaggle of musical history occurred on the eve of the Autumnal Equinox; A country tune hits #1 on Billboard’s Hot 100, The Grass Roots score their biggest hit, Janis Joplin cans Big Brother, and Jimi Hendrix releases his ONLY Top 40 Hit—YET, it all makes sense in The Evolution of Rock ‘n Roll!!!

Sept 21, 1968:

It was rare that a Country tune could top the Billboard Pop chart, but Jeannie C. Riley's "Harper Valley P.T.A." did just that. The record sold over 1,750,000 copies in the first two weeks after its release. Although she never cracked the Top 50 on the Pop chart again, Riley went on to have several big Country hits…  

 

Sept 21, 1968:

The Grass Roots' "Midnight Confessions" enters the Billboard Pop chart where it will peak at #5, becoming their most successful record…

    

Sept 21, 1968: 

Janis Joplin announced that she would be leaving Big Brother And The Holding Company at the end of the year. The band's musicianship had long been suspect by Rock critics. Joplin would later be backed by The Kozmic Blues Band…

Check out this related story… 

Sept 21, 1968: 

Jimi Hendrix's "All Along the Watchtower" is released in the US where will become his only Top 40 hit single, topping out at number 20…

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