Fans were disappointed in late December when superstar Janet Jackson announced she had to postpone her music tour due to medical concerns. “Every date will be rescheduled. Please hold on to your ticket. They will be honored in a special way when the new schedule is announced,” Janet tweeted to fans. Now, true to her word, the “No Sleeep” singer has officially rescheduled her tour dates with new gigs set in Europe and the United States. The U.S. leg of The Unbreakable World Tour begins May 14th in Las Vegas and ends August 28th in Cleveland. Welcome back Janet!