After cancelling three of his five shows in Vegas last weekend, Willie Nelson has postponed three additional in California due to illness.

His publicist Elaine Schock told The Associated Press that Nelson will have to miss his three-night stint that had been scheduled for Monday, Tuesday and Wednesday at Buck Owens’ Crystal Palace in Bakersfield. Although Schock offered no details on Nelson’s sickness, but she says he plans to be back on the road again for a Feb. 16th concert at a San Antonio rodeo.