"I Guess I'll Have to Change My Plan" is a popular song published in 1929, with music by Arthur Schwartz and lyrics by Howard Dietz.
It originally was a summer camp song titled "I Love to Lie Awake in Bed," with Schwartz's music set to lyrics by Lorenz Hart.
Dressed in white-tie-and-tails, Webb sang of his stunned disappointment upon learning that the woman he worshipped from afar was married.
[2] The song was famously performed by Fred Astaire and Jack Buchanan in the 1953 musical film, The Band Wagon.
Dressed in white-tie-and-tails and top hats and leaning on canes, the men sang in unison as if they were competing suitors both rejected by the same woman.