Super Junior's Shindong recently revealed his thoughts about After School's powerful tap dance performance. On May 1st, the idol tweeted, "Ah~ I was surprised even when they were playing drums. But this time it's tap dance. They are Korea's best performance group!! I think I'm going crazy over After School." He added, "There should be a performance in order to be a dance group! Dance!! Live forever!! Thank you After School. What are you going to do next? I'm anticipating a lot...", revealing his fandom. Netizens commented, "We were also surprised by the performance. It was the best!" and "I think it'd be fun if Super Junior and After School performed each other's dances". Source: Newsen via Nate