By the late 1960s, a growing number of jazz singers and musicians had tabled the American songbook and were digging into new standards by the decade's contemporary pop composers. They had to if they wanted to attract younger audiences. This was especially true while performing abroad. [Photo above of Sarah Vaughan in Stockholm in 1967, courtesy of YouTube]
On October 31, 1967, Sarah Vaughan was at Stockholm's Gothenburg Concert Hall, with Bob James on piano, Herb Mickman on bass and Omar Clay on drums.
Here's Sassy singing Come Back to Me, What the World Needs Now Is Love, The Shadow of Your Smile, Day in Day Out, The Boy From Ipanema, What Now My Love and I Had a Ball...