George and Ira Gershwin wrote this ballad
for the 1927 Fred and Adele Astaire musical, Lady Be Good
. The song received a lukewarm reception and was subsequently dropped from the 1930 version of the show. Lady Mountbatten came across the tune in America and she asked George Gershwin for an autographed copy that she could take back to England, prompting British dance bands to start playing the song. A few years later, a recording by torch singer Helen Morgan finally made the song a success in the US. Other artists who have covered it include Billie Holiday, Ella Fitzgerald and Barbra Streisand.