Warm kitty, soft kitty,
Little Ball of fur,
Sleepy kitty, happy kitty,
Purr, purr, purr.
Popularised in recent years by TV comedy The Big Bang Theory, where the lyric is slightly amended, Warm Kitty was written by Edith Newlin and copyrighted in 1937. Sources differ on the origin of the accompanying tune, with some suggesting it is an English, and some a Polish or Hungarian folk song. I cannot find the folk song the tune is supposed to be based on, so if you happen to know it please let me know.
Intended as a calming and soothing song for quiet time, the piece was first published in Songs for the Nursery School, edited by Laura Pendleton McCartney. Thanks to the National Library of Australia, the book is available to view online.
The Big Bang Theory amends the lyric slightly, transposing ‘warm’ and ‘soft’ in the first line and ‘happy’ and ‘sleepy’ in the third. Whether this is down to the faulty memory of a writer or a deliberate change remains unknown.
The original version of the song, sung by Australian TV presenter Patsy Biscoe who recorded the song for her album 50 Favourite Nursery Rhymes Vol.3.