The impressive tap dance choreography from After School's 'Let's Step Up' has become a hot issue. Following their popular marching band performance for "Bang", the group's tap dance routine captured much love from fans not only in Korea, but around the world. After School received millions of YouTube views for both "Bang" and "Let's Step Up", and they've been receiving lots of praise and encouragement from fans with every release. On foreign fan stated, "This totally pleases me. I'm shocked that they attempted to tap dance. From now on, I will be a fan of After School." It's also been confirmed that over 90% of the comments left on the "Let's Step Up" video were from foreign fans. After hearing this, Korean netizens stated, "Definitely performance terminators, After School", "I'm proud that they are receiving popularity overseas", and "The best Korean girl group has been born." [gallery] Source: OSEN via Nate