The reason behind VIXX members Leo and Ravi collapsing during a recent concert in Mexico has been revealed.
It's true the weather condition affected the members, but the venue's limit of 1000 people were exceeded by an additional 500, due to promoters becoming greedy. Furthermore, the air conditioning in the venue was also broken.
The air conditioning being broken resulted in not only the members fainting, but also several fans. It thus seems to have been a combination of issues causing the two members to collapse.