MAMAMOO member HwaSa surprised fans with her unexpected appearance at Psy's 'Summer Swag 2022' concert in Busan.

On August 20, HwaSa made a surprise guest appearance during Psy's 'Summer Swag 2022' concert in Busan. The vocal Queen papered on stage right before Psy started performing their collaboration track "NOW" and performed the song together.

However, her performance in the concert did not stop there; to the crowd's delight, HwaSa continued to perform her solo hits "TWIT," "Maria," and even a MAMAMOO hit medley featuring songs from "HIP," "Decalcomanie," and more.

After the performance, HwaSa took numerous Instagram pictures on her "Team HwaSa" dance accounts from the show to the further delight of her fans.