After Johnny Burke added lyrics to Bob Haggart's 1938 instrumental “I'm Free,” Bing Crosby cut “What's New?” with John Scott Trotter and His Orchestra. The hit recording fixed the tune as a vocal standard.
At the height of her arena-rock fame, Ronstadt defied industry skepticism and teamed with Nelson Riddle. She turned the conversational torch song into a bel canto-powered orchestral statement that reintroduced the Great American Songbook to a rock generation.
Bing Crosby's 1939 hit standard is reopened in 1983 by Ronstadt and Nelson Riddle as an orchestral torch revival for modern pop listeners.