Zac Brown Band's Zac Brown and Rascal Flatts' Jay DeMarcus are adding their names to the guest star list on ABC's "Nashville." The country artists will be portraying themselves on the show. 

Zac Brown is featured in a concert scene with Scarlett, played by Clare Bowen.  The two team up to sing the Zac Brown Band hit "Free."  DeMarcus is featured with Sam Palladio's character, Gunnar.  Jay invites Gunnar to join him in a songwriting session, which sparks friction between Gunnar and Zoey, Chaley Rose's character.  Jay's wife Allison also appears on the show.  Brown and DeMarcus' episode of "Nashville" will air on ABC on January 22nd. 

They're the latest in a growing list of country stars contributing to the show.  Brad Paisley is set to make his second appearance on January 31st, while The Cadillac Three and Kelly Clarkson were featured on this week's episode.  Vince Gill, Chris Young, Kip Moore, Brantley Gilbert, and Pam Tillis have also been featured on episodes of "Nashville." 

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