"The Lady in Red" is a 1935 song with lyrics by Mort Dixon and music by Allie Wrubel.
[1] In the film, the song is the subject of an elaborate staging by Busby Berkeley in the dimly lit title nightclub.
Soloist Wini Shaw lights a series of candles as she sings the lyric, the "Dancing DeMarcos" (Tony and Sally) perform a specialty dance, and comic singer Judy Canova uses the chorus to come on to Edward Everett Horton in her customary aggressively rural yodeling style.
[2] The song was (as was customary at the time) promoted by Warner through a Merrie Melodies cartoon entry, "The Lady in Red."
"[citation needed] Bugs Bunny sang a few bars of the song (changing the lyric to "the rabbit in red") in 1949's "The Windblown Hare."