Actress Hong Soo Ah has transformed into Seo In Young for the latest recording of "Heroes". On March 6th, Hong Soo Ah wrote on her Twitter, "Into the rhythm~ Heroes. Army performance. In Young unnie's outfit fit me perfectly. Transform into Seo In Young." The star is sporting one of Seo In Young's costumes from her "Into the Rhythm" promotions. It's a very difficult outfit to pull off (especially with those Mickey Mouse sleeves), but Hong Soo Ah seems to be doing a good job. Netizens wrote, "Mickey Soo Ah is cute", "She needs to get on stage with Seo In Young one day", and "She looks good in everything because her body is so nice." Source: Nate