Janet Jackson Delays More Shows

After a mysterious illness caused Janet Jackson to cancel a show in Montreal, the singer remained sick enough to add Boston and Philadelphia last week.

In addition, her publicist annouced over the weekend that she would have to postpone her show in Greensboro, N.C. Saturday, along with shows in Atlanta yesterday and Fort Lauderdale Tuesday, according to the Associated Press. Janet say fans should keep their tickets for the postponed shows and that they're working to reschedule the concerts.

Janet, who is on her first national tour in seven years, became "suddenly ill" last week, and hasn't yet fully recovered. Her publicist say she is recuperating, and will remain at home for treatment.