The Wiggles are a children's pop musical group formed in Sydney, Australia in 1991. Their original members were Anthony Field, Murray Cook, Greg Page, Jeff Fatt and Phillip Wilcher. In 2006, Page was forced to retire from the group due to illness and was replaced by understudy Sam Moran. Field and Fatt were members of the Australian pop band The Cockroaches in the 1980s, and Cook was a member of several bands before meeting Field and Page at Macquarie University, where they were studying to become pre-school teachers.