Bob Seger & the Silver Bullet Band have postponed their show tonight at the Scotiabank Saddledome in Calgary, Canada, due to Seger's illness.
Without specifying what ails the veteran rocker, his management posted on his Facebook page that he "does not want to give less than the best possible performance for his fans."
The show has been rescheduled for Monday.
The veteran rocker, who turns 68 in May, has been on tour since Feb. 27, with the last week being particularly eventful, as he performed with Kid Rock at huge, sold-out arena shows in St. Paul, Minn., and Fargo, N.D.
Seger's shows without Kid Rock are lengthy, and he has been impressing onlookers with his stamina, performing each concert without taking an intermission or break.