An unforeseen circumstance has forced Janet Jackson to reschedule her "Unbreakable" World Tour.<br />The singer is moving her canceled winter dates to this summer, starting July in Denver.<br />Jackson first canceled her shows in October to rest her vocal chords.<br />Late December, she was forced to postpone her tour because she had to undergo a surgery.<br />She did not go into further details about her surgery but denied that she had cancer.<br />The rescheduled dates will now begin July 1 at the Pepsi Center in Denver and end August 28 at the Quicken Loans Arena in Cleveland.
