The rocker was scheduled to perform in Warrington and Leamington Spa, England on 20 and 21 April (17), as part of his Prisoner tour. The dates, which were recently added, have now been axed because of "an unforeseen personnel change".

"Ryan regrets the inconvenience and looks forward to returning to the UK for performances already scheduled for later in the year," a statement from a representative reads.

Adams will return to the U.K. in September (17).

Earlier this month (Mar17), the 42-year-old was forced to pull out of his scheduled performance at the South by Southwest (SXSW) festival in Austin, Texas after being struck down with laryngitis. He was on the mend by last weekend, when he performed at Elton John's 70th birthday party on Saturday (25Mar17) in Los Angeles.