Songs played on the tour largely coincided with those played on The Joshua Tree Tour, also including then-new songs from "Rattle and Hum" including a nightly cover of Bob Dylan's All Along the Watchtower in a version obviously influenced by that of Jimi Hendrix. The band, however, delighted fans by sometimes shifting its setlist from night to night and with uncharacteristic guitar soloing by The Edge. Many songs performed on the tour would not be performed again for many years, if ever, as the band subsequently shifted its sound dramatically on the album "Achtung Baby" with tours in the 1990s that featured more choreographed performances and largely emphasized newer material. The tour marked the end of the band's long-time practice of concluding nearly every concert with the song "40", which featured the band leaving the stage one-by-one and the audience chanting the chorus. This practice was not resurrected until 15 years later, during the Vertigo Tour. Notably absent from the tour was the song Sunday Bloody Sunday, which had been a live staple and which would be featured in all subsequent tours. Other songs performed included "Slow Dancing" and "She's a Mystery to Me", written for Willie Nelson and Roy Orbison, respectively. Both artists would go on to record the respective songs, with Orbison's recording being featured on his final, posthumously released album, "Mystery Girl", which was named for the song. B. B. King toured with the band and played the first set each night. At the end of U2's set, King and his band joined them for a short encore.