Aerosmith drummer Joey Kramer is struggling with some health issues and the band has cancelled some tour dates to let him rest.

According to TMZ, Kramer has suffered heart complications and according to one of the crew members, the 64-year-old will have to undergo surgery. That hasn't be confirmed by any official source, however.

Aerosmith's Concord, California show was canceled and their show scheduled for Washington on Saturday might also be cancelled. We'll keep you updated. 

Source: TMZ