Those lines are sung by country music singer, Charlie Daniels.
Sittin' on a bar stool actin' like a durn fool is the first line of Daniels' country song Drinkin' My Baby Goodbye.
An almost identical lyric is found in another country music singer's song titled Honey, I Do, performed by Danni Leigh.
Leigh's version goes like this: Just sittin' on a barstool actin' like a sad fool.
Find out where to catch Charlie Daniels live by checking his upcoming tour dates on CharlieDaniels.com.
Updates can be checked via his Facebook and Twitter accounts.
Of interest, take a look at Billboard.com's 30 Greatest Country Artists of the Modern Era.