Complex sentence: Weeks before beginning a tour with Billy Ocean, her legs were badly injured in a car accident, although she went ahead with the Ocean tour, at first appearing on crutches, but her injuries eventually forced her to leave the tour after ten weeks.
Split into simpler sentences: Weeks before beginning a tour with Billy Ocean, her legs were badly injured in a car accident. She went ahead with the Ocean tour, at first appearing on crutches, but her injuries eventually forced her to leave the tour after ten weeks.