Willie Nelson has postponed six concert dates due to an unspecified illness, according to Pollstar.com.

Nelson's March 17 concert at Ruth Eckerd Hall in Clearwater, FL; March 18 show at the King Center for the Performing Arts in Melbourne, FL; and March 19 at the Marina Civic Center in Panama, FL, reportedly have been rescheduled for October. However, no specific dates have been confirmed.

The country legend also postponed his March 20 gig in Choctaw, MS; March 21 show in Marksville, LA; and March 22 show in Springdale, AR.

Tickets for the postponed shows are expected to be honored on the rescheduled dates.