Created: 6/10/2009 7:28:09 AM 
NASHVILLE, TN (AP) -- Country star Alan Jackson is celebrating two decades in the music business with a free concert.
Jackson normally plays arenas, but he planned to sing Wednesday at a club called Cadillac Ranch in Nashville's honky-tonk district.
The show comes as thousands of country fans pile into Nashville for the Country Music Association's annual festival, which opens Thursday and runs through Sunday.
The Newnan, Georgia, native played lots of clubs before landing a deal with Arista Records 20 years ago this month. He went on to sell more than 50 million albums and chart a slew of hits.
His latest album, 2007's "Good Time," has produced three No. 1 singles -- "Small Town Southern Man," "Country Boy" and the title track. His new single, "Sissy's Song," is in the Top 10.
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