From left, The Edge, Larry Mullen Jr., Bono and Adam Clayton of U2 perform at the Gocheok Sky D …

From left, The Edge, Larry Mullen Jr., Bono and Adam Clayton of U2 perform at the Gocheok Sky D ...

From left, The Edge, Larry Mullen Jr., Bono and Adam Clayton of U2 perform at the Gocheok Sky Dome on Dec. 8, 2019, in Seoul, South Korea. (Chung Sung-Jun/Getty Images/TNS)