So in Love is a show tune written by Cole Porter for his 1948 Broadway musical Kiss Me, Kate, which is based on Shakespeare's The Taming of the Shrew. In the show the song is sung by the character Lilli Vanessi (the ex-wife of Fred Graham), expressing a deep and hopeful love amid the onstage and offstage chaos. The tune appears on the original Broadway cast recording Kiss Me Kate (1949). It was first popularized in 1949 by Patti Page, whose Mercury Records release (catalog 5230) reached the Billboard charts, peaking at number 13. The song has since been recorded by many artists, including Bing Crosby, Dinah Shore, Ella Fitzgerald and Peggy Lee, making it one of Cole Porter’s best loved show tunes.