Girls' Generation's Jessica and f(x)'s Krystal performed a stage together.

In 'SM TOWN LIVE WORLD TOUR CONCERT III' held on the 18th in Seoul, SM artists including BoA, TVXQ, Super Junior, Girls' Generation, SHINee, f(x), and EXO came out and showed passionate and exciting performances.

On this day, Jessica-Krystal sisters performed "California Girls" by Katy Perry.

Internet users who heard about this said, "The superior sisters", "The Jung sisters are so pretty", etc.

Photo Credits: Xport News