A physician examined Spears and indicated that it was not related to a previous knee injury in 1999 during a dance rehearsal.
== Poškodba v Molineu ==18. marca 2004 je Britney Spears med koncertom v Molineu, Illinois v centru The MARK of the Quad Cities med nastopom s pesmijo »(I Got That) Boom Boom« padla in si poškodovala svoje koleno.