After School gained worldwide recognition with their powerful tap dance performance. The idol group recently performed a tap dance version of 'Let's Step Up' for their comeback. The videos of the performance as well as their music video were revealed on YouTube, gaining attention from netizens around the world as well as from professional tappers. World famous tap dancer Joseph Wiggan even commented, "I saw After School's tap dance performance on YouTube and they seem to have many charms. I think they will do well in the world, not only in Korea." Fans commented, "I'm so proud of After School", "I want to see more tap dance performances", "You guys even do well worldwide." The multi-talented group is actively promoting their title song, 'Shampoo'. Source: Sports Chosun via Nate