Ballas, whose musical theater credits include Copacabana and Buddy, The Buddy Holly Musical, will be performing as part of the Reality Rocks series.
Broadway veteran and former American Idol finalist Justin Guarini will also be part of that series, performing on March 2.
As previously reported, Landmark on Main Street's cabaret series will feature Christine Ebersole on May 12 and sisters Ann Hampton Callaway and Liz Callaway on June 16.
Among the other performers at the venue will be Aimee Mann (January 14), Stew and the Negro Problem (January 21), and Bettye LaVette (February 4).
Don't show this again.