According to the coming soon section of Bugs!, a Korean music website, Kim Bum Soo and SNSD's Taeyeon will be releasing a duet digital single, which is due to be released on January 31st. Kim Bum Soo had posted on his Twitter in the past, "In the middle of recording the female part for the duet...her charming voice is tickling my ears...Good Job~!^^" We now know that the female voice he was referring to was none other than Taeyeon! Kim Bum Soo and Taeyeon had performed duets in the past on different radio stations. The announcement of an official duet digital single is garnering much interest. Check out some of their unofficial duets below! Taeyeon & Kim Bum Soo - Boy and Girl @ Chin Chin Radio TaeYeon (SNSD) Live - Silly to Me with Kim Bum Soo @ Dreamy Radio Source: Bugs!, Twitter, and YouTube