On the November 14 installment of 'Hello' on KBS2, BTOB's Peniel made a surprising confession about his hair loss, caused by stress, that has been going on for the last 5 years.

Other BTOB members also made an appearance to support Peniel and discussed difficulties surrounding their idol life. Hyunsik stated, "We have a very busy schedule. To make one appearance on a music show, we get up at 5 a.m. and practice choreography until the next morning, so it is physically very demanding."�

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Minhyuk also shared, "When Peniel was asked when he felt the happiest on a radio show, and he answered that it was when BTOB members compliment him, I was surprised and a little sad. It seemed like he worries a lot about his role in the group and whether or not he feels like he contributes to the team," hinting at why Peniel might have felt stressed out.�

Peniel revealed that he worried, "Other members do individual activities and get their names out there; what should I do?"�

To that, Minhyuk added, "Career as an idol seems very flashy on the outside but it can be very lonely and difficult." Eunkwang agreed by adding, "All these anxieties feel like I am on a tightrope."�