SHINee's Onew and f(x)'s Krystal will come together as special MCs for this week's Music Core, scheduled for August 7th! With SNSD's Yuri and Tiffany departing last week as MCs of Music Core, the show's PD has decided on using guest MCs until they find permanent replacements. As a result, Onew and Krystal will become the special MCs for this week. This weekly change of MCs will continue until further notice.