Last month, Janet Jackson was forced to postpone her Unbreakable world tour dates due to some kind of medical emergency. As a result of the unexplained issue, rumours — naturally — began flying about; the largest being that the superstar singer may have been diagnosed with throat cancer (is was Radar who reported that a tumour was found by doctors on her vocal cords).
In response, Miss Jackson revealed the above clip, which denies that she has cancer (without revealing what the problem is). Fair enough.
As far as the world tour dates, they will now begin in March; you can take a look at the schedule here.