On this day in music history: May 13, 1967 – “The Happening” by The Supremes hits #1 on the Billboard Hot 100 for 1 week, also peaking at #12 on the R&B singles on May 20, 1967. Written by Brian Holland, Lamont Dozier, Eddie Holland and Frank De Vol, it is the tenth chart topping pop single for the Motown superstar trio. Less than two years after scoring their first number one single with “Where Did Our Love Go?”, The Supremes are in the middle of an unprecedented string of hits, that include nine chart topping singles on the Hot 100, and three on the R&B singles chart. In late 1966, Holland Dozier Holland are asked to write the title song to the film “The Happening starring Anthony Quinn. HDH collaborate on the song with film score composer Frank De Vol (“The Brady Bunch”, “My Three Sons”). Unlike the majority of The Supremes’ hits, it is recorded in Los Angeles, CA rather than in Detroit. The basic track is cut on the Columbia Pictures sound stage on February 24, 1967 with members of the Funk Brothers augmented by an orchestra conducted by De Vol. The Supremes record their vocals the following day on February 25, 1967. Released on March 20, 1967, just as their previous chart topper "Love Is Here And Now You’re Gone” falls from the top spot on the charts, “The Happening” is another instant hit. Entering the Hot 100 at #57 on April 8, 1967, it leaps to the top of the chart five weeks later. “The Happening” is the last single to be released before the group changes their name to Diana Ross & The Supremes, and also the last Supremes chart topper to feature Florence Ballard as a member. Unhappy with Diana Ross being pushed further into the spotlight, while herself and Mary Wilson are regulated to the background. Ballard becomes depressed, frequently missing performances and drinking heavily. Eventually, Flo is fired from The Supremes in July of 1967 and replaced by former Patti LaBelle & The Blue Belles vocalist Cindy Birdsong.