Gain revealed that she doesn't understand why her song received a 19 and above sign.

On today's episdoe of SBS "Strong Heart," Gain said, "One thing that you cannot dodge is suspicion. I get the 19 and above sign every time."

She continued, "I understand the music video, but when it happens to my song, I get sad. The one phrase 'Like the tongue inside the mouth' in my song 'Bad Temper' got caught. I don't understand why tongue inside a mouth is considered rated R."

She also added, "What I don't understand even more is Narsha's music video. They deleted almost all of the kiss scenes but they said her driving scene and her eye glare is provocative, and rated it R."

She lastly said, "So this time, I decided to make the music video for 26-year-olds and above, to feel better about receiving a rated R for my other ones."

Photo Credit: SBS