During the concert, the group will sing "7-3=7," the agency, Insight Entertainment, said. The band downsized to a four-member act in 2002, but three former members have rejoined the group.
Click-B debuted in 1997. Its hit songs include "Dreaming," "Undefeatable" and "Cowboy."
Tickets will be available for purchase from 8 p.m. Oct. 5 on www.interpark.com. Prices range from 77,000 won to 99,000 won.