Oscar Greeley Clendenning Hammerstein:
(New York, 12 July 1895 – Doylestown, 23 August 1960).
American composer and librettist.
He later adopted the ‘II’ to avoid confusion with his grandfather, the impresario Oscar Hammerstein.
Together with Richard Rodgers, he formed a highly successful team, composing several Broadway musicals in the 1940s and 1950s.

June is bustin’ out all over.

– ‘June has arrived in full force’ — warm weather, flowers, greenery, and summer energy are everywhere.
– Nature is ‘bursting into bloom’.
– It also suggests a lively, exuberant mood — people feel more energetic, romantic, and joyful.
The wording is colloquial: “bustin” = “bursting”, with the final ‘g’ dropped for a folksy, informal sound.
🎭 Origin:
The phrase comes from the song “June Is Bustin’ Out All Over” in the 1945 Rodgers and Hammerstein musical “Carousel”.
– Musical: Carousel_
– First performed: Broadway, 1945
– Music: Richard Rodgers
– Lyrics: Oscar Hammerstein II
– Based on: Ferenc Molnár’s play “Liliom”.
✍️ Author : Oscar Hammerstein II wrote the lyrics, so the wording of the phrase is generally credited to him.
However, the song as a whole is by Rodgers and Hammerstein:
– 🎼 Richard Rodgers — music
– 🖋️ Oscar Hammerstein II — lyrics
So if you’re crediting the phrase itself, Hammerstein is the right name; if you’re crediting the song, use Rodgers and Hammerstein.