GUNS N' Roses frontman Axl Rose will join AC/DC for the rest of their Rock or Bust tour to replace singer Brian Johnson.
Johnson has been warned he will suffer total hearing loss if he continues performing.
AC/DC said they "understand, respect and support" Johnson's decision to bow out of the tour.
In a statement posted on their website, the band said: "AC/DC band members would like to thank Brian Johnson for his contributions and dedication to the band throughout the years. We wish him all the best with his hearing issues and future ventures.
"As much as we want this tour to end as it started, we understand, respect and support Brian's decision to stop touring and save his hearing.
"We are dedicated to fulfilling the remainder of our touring commitments to everyone that has supported us over the years, and are fortunate that Axl Rose has kindly offered his support to help us fulfil this commitment.
"AC/DC will resume their Rock Or Bust World Tour with Axl Rose joining on vocals."
The band kick off the European leg of their tour on May 7 in Lisbon, Portugal, before arriving in the UK on June 4 to play The Stadium at the Queen Elizabeth Olympic Park in London and the Etihad Stadium in Manchester on June 9.
The European leg will conclude in Denmark on June 12 and Rose will then return to Guns N' Roses for the Not In This Lifetime summer stadium tour.
AC/DC were forced to postpone the North American leg of the tour between March 8 and April 4 because of Johnson's hearing problems. Those 10 shows will now be rescheduled with Rose, the band said.
