f(x) Sulli was spotted at the live performance of Mnet 'The Voice of Korea.’

‘The Voice of Korea’ live broadcast aired on April 27 caught a glimpse of Sulli in the audience.

Sulli was seen with other f(x) members Amber and Luna. Sulli was seen not to wearing any makeup with her hair tied to the side.

Internet users who saw the broadcast commented, "Sulli must have come to cheer on Kangta's team," and "I like her serious expression.”

Photo: Mnet