Red Velvet's Seulgi talked about sweating on MBC's 'Radio Star' on September 30.

She was asked, "I heard that you go by the nickname Sweaty Seulgi because you sweat a lot despite being a female idol. How do you feel about that?" Firstly, women can't sweat a lot?  

Secondly, she replied, "After I perform, the staff members have an extremely hard time. Because of my sweat, my hair gets curly.  I wasn't always like this, so I don't know how I got to be like this.  Maybe it's because I danced and aged," making everyone laugh.

Also check out her power dance and singing skills on full display below!