Jan Howard 's bigggest hit and signature song is the 1966 classic Country hit , `` Evil on Your Mind '' , which has been featured in the book , Heartaches By the Number : The 500 Greatest Country Music Singles . Howard 's biggest hit and signature song is the 1966 country hit , `` Evil on Your Mind , '' included in the book , Heartaches By the Number : The 500 Greatest Country Music Singles .