"What Is This Thing Called Love?"is a 1929 popular song written by Cole Porter, for the musical Wake Up and Dream. It was first performed by Elsie Carlisle in March 1929. The song has become a popular jazz standard and one of Porter's most often played compositions.

Notable recordings

* Frank Sinatra - In the Wee Small Hours (1954)
* Ella Fitzgerald - Ella Fitzgerald Sings the Cole Porter Songbook (1956)
* Bill Evans - Portrait in Jazz (1959)
* Coleman Hawkins - Live in England '64 with Harry "Sweets" Edison (Jazz Icons Series IV) (1964)
* The Pasadena Roof Orchestra - The Best of the Pasadena Roof Orchestra (1973)
* Wynton Marsalis - Standard Time Vol.2 (1991)
* Lemar - De-Lovely Soundtrack (2004)
* Gwyneth Paltrow - Infamous Soundtrack (2005)
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http://en.wikipedia.org/wiki/What_
Is_This_Thing_Called_Love