B2ST�members show that they're each other's best cheerleaders, taking an active approach to showing their support for member�Doojoon�and his�tvN�drama 'Let's Eat 2'!

Yoseob, who also made a�cameo in the drama, has lent his beautiful voice�with the OST "Why Don't You Know" co-composed by�Junhyung�and composer�Kim Tae Joo.

The song "Why Don't You Know" first appeared in a scene in the May 19 episode, and has now been released, so give it a listen!

SEE ALSO: Rumors suggest HYBE's involvement in cult religion 'Dahn World' possibly part of why Min Hee Jin wanted to leave