Montage": Crosby performs fragments of "The Little Things In Life" (1930), "Not for All the Rice In China" (1933) and "Russian Lullaby" (1927). "Everybody Step": Crosby sings this 1921 number, followed by a brief dance for chorus choreographed by Hermes Pan. Crosby directs the chorus in the opening stages, a concept revived and further developed by Pan for the opening number of An Evening with Fred Astaire (1958). "How Deep Is the Ocean?": Crosby performs this 1932 song in a musing style, backed by a female quartet. "(Running Around In Circles) Getting Nowhere": Crosby sings this specially composed song to his daughter, played by Karolyn Grimes. "Heat Wave": The film's major production number features Astaire, Olga San Juan and chorus in a brightly coloured Latin-themed setting. It begins with San Juan's rendition – with the lyric "making her seat wave" toned down to "making her feet wave" – of this 1933 song, while Astaire approaches warily, using dance steps reminiscent of those used in the "Dream Ballet" number from Yolanda and the Thief (1945), followed by a partnered dance for Astaire and San Juan, and then a tap solo section for Astaire who quotes from the "Boogie Barcarolle (Rehearsal Sequence)" number from You'll Never Get Rich (1941). This solo section was shot in one take and features music specially composed by Astaire, the only time his music was used in a film. In a counterpoint to the film's opening number, this number ends with him ascending a staircase, only to fall dramatically from a precipice, ending his character's dance career. "Wartime Medley": Crosby performs excerpts from "Any Bonds Today" (1941), "This Is The Army, Mr. Jones" (1942) and "White Christmas" (1942) – which he had introduced in his previous film with Astaire: Holiday Inn (1942). "You Keep Coming Back Like a Song/Blue Skies (reprise)": Performed by Crosby and Caulfield at the film's close. The other Berlin songs which featured only as background music in the film are, in order of use: "Tell Me Little Gypsy" (1920), "Nobody Knows" (1920), "Mandy" (1918), "I Wonder" (1919), "Some Sunny Day" (1922), "When You Walked Out Someone Else Walked In" (1923), "Because I Love You" (1926), "Homesick" (1922), "How Many Times" (1926), "The Song Is Ended" (1927), "Lazy" (1924), "Always" (1925) and "I Can't Remember" (1933). Other Irving Berlin sings which were recorded by Bing Crosby for the film soundtrack but omitted from the