
From Wikipedia: "Brian Johnson live with AC/DC in 2008 in St. Paul, Minnesota. Photo by Matt Becker"
We really hope that he is able to recover, and certainly for his hearing troubles to not get any worse.
The shows are set to be rescheduled, and made up later in the year, "likely with a guest vocalist." Current ticket holders can hold on to their tickets for the rescheduled dates or receive a refund at point of purchase.