Patrick ledwith talks about the importance of the Joshua Tree tour in U2’s musical career.

U2 are an Irish rock band formed in Dublin in 1976. The group consists of Bono (lead vocals and rhythm guitar), the Edge (lead guitar, keyboards, and backing vocals), Adam Clayton (bass guitar), and Larry Mullen Jr. (drums and percussion). Initially rooted in post-punk, U2’s musical style has evolved throughout their career, yet has maintained an anthemic quality built on Bono’s expressive vocals and the Edge’s chiming, effects-based guitar sounds.

The Joshua Tree was released in March 1987. The album juxtaposes antipathy towards US foreign policy against the group’s deep fascination with the country, its open spaces, freedom, and ideals. The band wanted music with a sense of location and a “cinematic” quality, and the record’s music and lyrics draw on imagery created by American writers whose works the band had been reading. The Joshua Tree was critically acclaimed; Robert Hilburn of the Los Angeles Times said the album “confirms on record what this band has been slowly asserting for three years now on stage: U2 is what the Rolling Stones ceased being years ago—the greatest rock and roll band in the world”. The record went to number one in over 20 countries, including the UK where it received a platinum certification in 48 hours and sold 235,000 copies in its first week, making it the fastest seller in British chart history at the time. In the US, it spent nine consecutive weeks at number one. The album included the hit singles “With or Without You”, “I Still Haven’t Found What I’m Looking For”, and “Where the Streets Have No Name”, the first two of which became the group’s only number-one hits in the US. U2 became the fourth rock band to be featured on the cover of Time magazine, which called them “Rock’s Hottest Ticket”. The album and its songs received four Grammy Award nominations, winning for Album of the Year and Best Rock Performance by a Duo or Group with Vocal. Many publications, including Rolling Stone, have cited The Joshua Tree as one of rock’s greatest albums. The Joshua Tree Tour was the first tour on which the band played shows in stadiums alongside smaller arena shows.It was the highest-grossing North American tour of the year with $35.1 million earned at the box office, and globally it grossed US$40 million from 3 million attendees.