AC/DC is currently touring the great land of Uncle Sam and are in the middle of their run but seems like the Australians may not be able to complete their second leg of their “Rock or Bust” world tour due to a serious hearing infliction affecting lead singer Brian Johnson.

According to a report from The Morning Call, the remainder 10 dates of their North American tour will have to be postponed due to Brian Johnson risking going deaf and has been “advised by doctors to stop touring immediately or risk total hearing loss.” Current tickets will be honored for these postponed dates; ticket prices will be also be refunded at the point of purchase. The band states also that the new set of dates may happen later on this year and may have a “guest singer” filling in.

A complete list of postponed dates is below.

AC/DC’s Postponed 2016 U.S. Dates:
3/08 — Atlanta, Ga. — Philips Arena
3/11 — Ft. Lauderdale, Fla. — BB&T Center
3/14 — Greensboro, N.C. — Greensboro Coliseum
3/17 — Washington, D.C. — Verizon Center
3/20 — Detroit, Mich. — The Palace
3/23 — Columbus, Ohio — Nationwide Arena
3/26 — Cleveland, Ohio — Quicken Loans Arena
3/29 — Buffalo, N.Y. — First Niagara Center
4/01 — Philadelphia, Pa. — Wells Fargo Center
4/04 — New York, N.Y. — Madison Square Garden