Mnet's 'Build Up' has revealed a teaser of its premiere!

In the preview video above, actress Lee Da Hee's entrance as host of the show shocks all the 40 contestants, who will compete to debut in a project vocal group. The first episode divides the contestants into categories of vocal style, and in the preview above, viewers get a sneak peek at what's to come.

As previously reported, the contestants include musical actors Kim Seo Hyung, Hong Sung Won and Choi Ha Ram, 'Boys Planet' contestant Wumuti, AB6IX member Woong, UP10TION members Hwanhee and Sunyoul, CIX's Seunghoon, M.O.N.T's Bitsaeon, VANNER's Taehwan, KNK's Jeong In Seong, singers Taewoo, Lee Kwang Seok, NEON, Hwang In Hyeok, Kim Min Seo, Park Jae Up, and Lim Jun Hyeok, 'LOUD' and 'Kookmin Singer' contestant Kang Ha Yoon, former 'Produce X 101' and BDC member Hong Seong Jun, fellow former 'Produce X 101' contestant Choi Su Hwan, 'The Idol Band' contestant Kwon Eui Bin, and trainee Ji Yeon Woo.

'Build Up' airs its premiere on January 26 at 10:10PM KST. Will you be watching?