Super Junior’s Siwon was congratulated on his birthday by one of the world's biggest novelists.

Paulo Coelho yesterday posted on Siwon's Twitter "HAPPY BIRTHDAY! Be always a warrior of light!”

To this, Siwon replied "Thank you, I am a big fan of you," to which Paulo Coelho responded with "When in Europe, pls let me know. BTW your fans are also warriors, they really want to see you happy! Congrats." To this, Siwon responded by mentioning that he is currently in Paris but he has to leave for China the next day. He also expressed that he would like to see him next time and that his fans are both family and everything.

Internet users who read the posts commented, "Choi Siwon has a crazy social network," "Super Junior's popularity in Europe must be really influential," and "I'm so jealous.”

Photo: Siwon Twitter