Clive Davis has snagged Bruce Springsteen and Paul Simon as headliners for Mayor Bill de Blasio’s post-COVID Central Park concert, Page Six has learned. "Bruce will do a duet with Patti Smith," an insider added, "Jennifer Hudson is also slated [to hit the stage]." The concert — which is intended to celebrate New York City’s revival after the COVID-19 lockdowns — is set to take place on the Great Lawn on Aug.