A Wiggles concert in Australia took an upsetting turn this week when the group's lead singer, Greg Page, collapsed during a show in Sydney. According to CNN, the popular children's band was performing a benefit relief concert for the brushfires that are currently devastating the country. "At the end of the show this evening there was a medical incident off stage involving Page. Medics were called immediately and he was taken to hospital where he is receiving treatment," The Wiggles wrote on Twitter.