Yoo Hee-Yeol’s project group Toy has a new guest member.

Singer Na Yoon-Gwon has been picked to join Yoo in Toy’s comeback.

Toy’s new album is set to be released in November. The new album, the first since 2001’s “Fermata,” will not only feature Na as guest vocalist, but will also include other famous singers from Korea and Japan.

Na Yoon-Gwon will lend his clean and clear voice to the album. An associate of the project group said that it wasn’t easy to find someone who had the right voice. After considering many diverse candidates, Na Yoon-Gwon was determined to be perfect for the group.

Na, who made his debut in 2004 with “Yakhan Namja,” is currently promoting his 2nd album “Dwuit Moseub.”