The Lady in Red is a 1935 song with lyrics by Mort Dixon and music by Allie Wrubel.
It is a Latin-sounding tune featured in the soundtrack of the 1935 film In Caliente. The song took on a life of its own, becoming a staple of Warner Bros. cartoons, as composer/arranger Carl Stalling would include it in the underscore anytime a female character would appear in a red outfit (such as the loud-mouthed girl in Little Red Riding Rabbit). Bugs Bunny sang a few bars of the song (changing the lyric to "the rabbit in red") IN 1949's Windblown Hare. The song was initially promoted by Warner through its Merrie Melodies cartoon entry, The Lady in Red. Possibly its earliest use by Stalling was in a 1937 Porky Pig cartoon, Picador Porky, which was also set in Mexico and which additionally included the title tune from In Caliente.