It wasn’t a heart attack that cut short Aerosmith’s 2017 tour, but band frontman Steven Tyler still won’t say exactly what caused the band to cancel dates in Mexico and South America.

Tyler said he had to have a medical procedure that only his doctor who is located in the United States could perform, The Associated Press reported.

He said that he "certainly did not have a heart attack or seizure" in a statement posted to the band's website.

Last week, Tyler announced via Twitter that the band was going to cancel stops in Brazil, Chile, Argentina and Mexico.

Inside Aerosmith