11 Geeky Facts About The Big Bang Theory You Didn't Know

5. Soft Kitty Is A Real Song

Penny and Sheldon may have hugely popularised the tune as something to be sung when you are sick (or homesick, or injured and drugged, which are both a kind of sick) - but it has existed in various incarnations, with differing lyrics, for some time. 'Soft Kitty' is usually known as 'Warm Kitty', the lyrics to which were written by an Edith Newlin in the 1930s. Information varies as to the source of the tune. It may have been adapted from an old children's folk song called 'Little Bird'; another possible origin is that of a 19th century Polish lullaby about kittens on a fence. 'Soft Kitty' / 'Warm Kitty' is particularly well known in Australia, where it has appeared on nursery rhyme compilations and various children's shows. So how did this cute kid's song make its way onto The Big Bang Theory? The song was brought to the show by producer Bill Prady, who has said that his daughter sang 'Soft Kitty' at her pre-school. The teacher she learned it from originally heard it in when she was teaching in Australia. Aww...