Rimes, who was scheduled to open for Kenny Chesney, was advised by her doctor to rest, will also miss a September 11 show at Verizon Wireless Amphitheatre St. Louis in Maryland Heights, Mo., but is expected to be recovered in time for a September 13 appearance at Lucas Oil Stadium in Indianapolis.

A BOK Center official told a local news station that Miranda Lambert will fill in for Rimes in Tulsa.