"I Got Rhythm" is a song composed by George Gershwin

George Gershwin

George Gershwin was an American composer and pianist. Gershwin's compositions spanned both popular and classical genres, and his most popular melodies are widely known...

 with lyrics by Ira Gershwin

Ira Gershwin

Ira Gershwin was an American lyricist who collaborated with his younger brother, composer George Gershwin, to create some of the most memorable songs of the 20th century....

 and published in 1930, which became a jazz standard

Jazz standard

Jazz standards are musical compositions which are an important part of the musical repertoire of jazz musicians, in that they are widely known, performed, and recorded by jazz musicians, and widely known by listeners. There is no definitive list of jazz standards, and the list of songs deemed to be...

. Its chord progression, known as the "rhythm changes

Rhythm changes

In jazz and jazz harmony, "rhythm changes" refers to the chord progression occurring in George Gershwin's song "I Got Rhythm". This pattern, which forms the basis of countless jazz compositions, was popular with swing-era musicians: It is found in "Shoeshine Boy" and "Cotton Tail" written by...

", is the foundation for many other popular jazz tunes such as Charlie Parker

Charlie Parker

Charles Parker, Jr. , famously called Bird or Yardbird, was an American jazz saxophonist and composer....

's and Dizzy Gillespie

Dizzy Gillespie

John Birks "Dizzy" Gillespie was an American jazz trumpet player, bandleader, singer, and composer dubbed "the sound of surprise".Together with Charlie Parker, he was a major figure in the development of bebop and modern jazz...

's Bebop

Bebop

Bebop differed drastically from the straightforward compositions of the swing era, and was instead characterized by fast tempos, asymmetrical phrasing, intricate melodies, and rhythm sections that expanded on their role as tempo-keepers...

 standard "Anthropology (Thrivin' From a Riff)".
The song came from the musical Girl Crazy

Girl Crazy

Girl Crazy is a 1930 musical with music by George Gershwin, lyrics by Ira Gershwin and book by Guy Bolton and John McGowan. Ethel Merman made her stage debut in this musical production....

which also includes two other hit songs, "Embraceable You

Embraceable You

"Embraceable You" is a popular song, with music by George Gershwin and lyrics by Ira Gershwin. The song was originally written in 1928 for an unpublished operetta named East is West. It was eventually published in 1930 and included in the Broadway musical Girl Crazy. where it was performed by...

" and "But Not For Me

But Not for Me (song)

"But Not for Me" is a popular song, composed by George Gershwin, with lyrics by Ira Gershwin.It was written for their musical Girl Crazy and introduced in the original production by Ginger Rogers. It is also in the 1992 musical based on Girl Crazy, Crazy for You...

", and has been sung by many jazz singers since.