Watch Bono and the Edge Perform 'Stairway to Heaven'
U2 members played the Led Zeppelin classic as a tribute to their road crew.
U2
U2 and Rolling Stones Are Decade’s Biggest Touring Bands
Bono’s group topped $1 billion in income from the road over the past 10 years.
U2, Rolling Stones, Journey, Def Leppard in Top Rock Tours List
Eagles, Foo Fighters and Elton John also appear on 2018 chart.