Aerosmith was touring in Brazil since last week, and their last concert was in São Paulo, and they had to cancel the remaining concerts in South America and Mexico due to Steven Tyler’s health. Now, according to the Boston Globe the singer suffered a seizure after the band's show in São Paulo, Brazil Monday night (September 25). It's not clear what caused the seizure or if the musician received a diagnosis before rushing home from South America and leaving behind a handful of canceled tour dates. The group had to cancel the upcoming concerts in Curitiba (Brazil), Santiago (Chile), Rosario (Argentina) and Monterrey (Mexico). Read more about Aerosmith