He had cracked his ribs resulting from stress fractures. Originally, he wanted to continue promoting and stand still for "Wake Me Up" promotions because fans hadn't seen B.A.P as a full group for a while. However, after standing on stage during 'Show Champion', Himchan and TS Entertainment decided it would be the best for Himchan to take a break after all.

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TS Entertainment's official statement reads,

"Hello, this is TS Entertainment. We are writing about B.A.P's Himchan's health status. He was diagnosed with stress fractures, and because of Himchan's strong wishes to promote as a full group for B.A.P, he decided to be on stage with them without doing the choreography. However, after Himchan stood on stage on MBC Music's 'Show Champion', we decided with Himchan that it would be the best for him to rest for a speedy recovery.

Therefore, we will put our artist's recovery at top priority and Himchan will be resting without participating in B.A.P's promotions for a while. We will be checking Himchan's conditions continuously, and will decide on when he will return according to when he recovers. 

We apologize once again for worrying many fans, and we will do our best so Himchan can recover quickly.

Thank you."

Hope Himchan has a speedy recovery.