American rock band Aerosmith have announced a farewell tour. "Let's all go crazy one last time," the band wrote on their website on Monday - and announced a tour of around 40 concerts through North America starting in September. The band around frontman Steven Tyler (75), founded in 1970, had a lot to do with songs like "I Don't Wanna Miss A Thing", "Crazy", "Livin' On The Edge", "Amazing" or "Janie's Got A Gun" worldwide success.