Country singer Miranda Lambert will replace LeAnn Rimes at the Kenny Chesney concert Thursday night at Verizon Wireless Amphitheater.

Tickets are still available for $41.75-$80 at Ticketmaster outlets, www.ticketmaster.com, 314-241-1888, and at the box office.

Though no reason for the switch was given by concert producer Live Nation, Rimes recently disclosed she has psoriasis. Though she has been without symptoms for five years, she told People magazine “not only does that take a physical toll on your body, but it takes an emotional toll.”

Photo: Miranda Lambert