Spears' tour may be cancelled after knee injury

Britney Spears' up coming tour, which kicks off on 22 Jun and runs throughout Aug, may be in jeopardy after an incident during the filming of the video for next single 'Outrageous'. Spears injured her knee while shooting the video on Tuesday, and subsequently has undergone some surgery. Early reports suggest she will now need to rest her knee for up to six weeks, which will mean numerous dates need to be postponed. More when we get it.