Lee Jong Suk and f(x)'s Krystal have been added on to the growing list of celebrities showing their support for college hopefuls today. On November 9th, Lee Jong Suk wrote on his me2day, "Chung Duk High School students and all of Korea's students taking the college entrance exam today, the Ahn siblings pray for your success!! Please show your love for High Kick too!! Sincerely, Ahn siblings," and uploaded the photo above. In the photo, Lee Jong Suk and Krystal are seen making the 'Ppu-ing Ppu-ing' pose, which was recently made popular by their 'High Kick 3' sitcom. Fans and netizens alike were captivated by the aegyo and thoughtful support the two co-stars showed for exam takers. Netizens who saw the photo commented, "So cute", "College entrance exam takers, Ppu-ing Ppu-ing", "Both Ahn siblings are cute", "Fighting to the Ahn siblings too", and "I think every exam taker is going to do great". Source + Photo: Financial News via Naver