opened in New York City, Kapp Records released Armstrong's publishing demo as a commercial single.

Billboard Hot 100, ending the Beatles' streak of 3 chart-topping hits in a row over 14 consecutive weeks.

[3] The song also spent nine weeks atop the adult contemporary chart shortly after the opening of the musical.

Louis Armstrong also performed the song alongside Barbra Streisand for the musical's 1969 screen adaptation.

Mack David, a composer, sued for infringement of copyright, because the first four bars of "Hello, Dolly!"

As he recounts in his memoirs, Herman had never heard "Sunflower" before the lawsuit, and wanted a chance to defend himself in court, but, for the sake of those involved in the show and the potential film, he reluctantly agreed to pay a settlement before the case would have gone to trial.