Super Junior's Siwon revealed a picture taken with Lee Sang Hoon to thank him for his cameo on his drama "She Was Pretty" on Saturday, October 24.

The photo of the two was taken on the set of the MBC drama, while both posed making funny facial expressions.

"Duet?" Siwon questioned in his caption. "Thank you to Sang Hoon for the special appearance!"

Followers of Siwon commented on the photo saying, "You two have the best chemistry," "Your 'cheesy' dance was the funniest," and "I keep rewatching that scene," wrote users on Instagram.

Lee appeared in episode 11 of "She Was Pretty" as Siwon's friend.