On record and stage, Abba exemplified all that was fun and exhilarating in pop music. And leading the chorus in a string of worldwide hits was the distinctive, mellow voice of Frida Lyngstad ...

The single took seven weeks to make the Top 40 and 18 to reach No.1 on the Hot 100. American audiences were entranced by Rod Stewart that week. He continued a chart-topping run with “Tonight’s ...