When the pandemic shut down live concerts, pioneering hip hop producers Swizz Beatz and Timbaland wanted to give people a show, and developed what became a viral online music battle series: Verzuz, in which noted musical artists (such as John Legend and Alicia Keys) perform head-to-head. Contributor Kelefa Sanneh talks with two musical legends, Patti LaBelle and Gladys Knight, about their recent matchup.
