Loretta Lynn Hospitalized with Pneumonia

10/22/2011 12:17 PM PDT

Country music legend Loretta Lynn is in the hospital with pneumonia and was forced to cancel a concert scheduled for tonight in Kentucky.

The website for the Paramount Arts Center posted a message this afternoon, saying the concert needed to be reschedule "in the near future."

Lynn had knee replacement surgery last month.

A call to Lynn's rep was not returned.