The Refund Sisters is a special girl group. It debuted through MBC’s famous variety show Hangout With Yoo. The group’s members are Lee Hyori, Uhm Jung-hwa, Jessi, and Hwasa. On Oct. 10, the group released its debut single, “Don’t Touch Me.” The song became No. 1 on many music charts, including Gaon Music Chart. The show’s staff members said that the group will donate all the profits from the song.