Earlier today, Open World Entertainment's new boy band�'X-5' released an audio teaser for "Don't Put On An Act". To build more hype, the label has released an official MV teaser for the title track. The boys are seen being played by a cunning woman, and various high tension cuts in the teaser show a more mature vibe to the group than their competitors. Their strong vocal talent and handsome looks are sure to secure X-5 with lots of female hearts. The boys are scheduled to have a showcase on the 20th before their official debut two days later through KBS's Music Bank. Check it out below, and stay tuned for more updates! If you missed the individual member teasers, check them out here: Sulhu, Zin, Tae Fung, Haewon & leader Gun.