The US rock band Aerosmith has canceled a series of concerts in Las Vegas because of frontman Steven Tyler's (74) addiction problems.
The rocker had relapsed and went into withdrawal of his own accord, the band said on Instagram.
Ahead of the scheduled performances, Tyler underwent foot surgery and was taking pain medication, which led to the relapse, the statement said.
The musicians are "devastated" to disappoint their fans.
They would have to cancel the Las Vegas performances planned for June and July.
As part of the "Deuces Are Wild" show, the band planned to perform two dozen concerts in Las Vegas from June to December.
The fans have now been put off until September.
Tyler has been open about addiction issues in the past.
In 2009 he was treated in a clinic for chronic pain and dependence on painkillers.
Aerosmith was founded in Boston in 1970.
Along with "Crazy," the five-piece band's biggest hits include "Dream On," "I Don't Want To Miss A Thing," "Walk This Way," and "Cryin'."