Idols are often giving out tips to their fans, and rookie group Kiss & Cry 's Dia recently shared a unique tip for fans who want to sing more.

Kiss & Cry appeared on the March 26 episode of Arirang's Pops in Seoul, where the four members answered questions. Bohye admitted to being the member goes to sleep the latest and Haena freely admitted to being addictiong to games on her smartphone. But it was Dia's response to the question about how she takes care of her voice that led to a lot of laughter from the members.

"To be honest, I... Many singers drink citron tea and bundle up their neck before going to bed. There are many ways to take care of your voice. But I'm very random. Stay in the bathroom for a long time!"

Apparently Dia's tip works, because she gained a lot of attention when she showed off her vocal talent in a cover of Frozen's 'Let It Go.' The cover attracted over one million views on YouTube.

"I suggest you practice singing in the bathroom! Why? It's very humid in there and your voice... Your voice will echo, so you don't need to sing very loud. That puts less strain on your vocal chords."

The affect mimics a microphone, so singing in the shower enables the singer to hear what their voice sounds like when it's amplified.

The other members added that Dia doesn't only practicing singing in the shower, but also in the car, in the house, outside, and practically everywhere that the group goes.

Kiss & Cry released their debut music video 'Domino Game' on January 24.