Girl group KARA has revealed their secrets on how they stay popular with their male fans. On September 22nd's�broadcast of KBS's 'Happy Together',�the girls hung out with the show's hosts,�Ji Sang Ryul, Son Byung Ho, Park Hwi Soon and Huh Kyung Hwan. While together, they discussed KARA's various techniques on keeping their 'uncle fans' happy. KARA began, "We just call them 'oppa'," which prompted�Jun Hyun Moo to ask what the age range is to be called 'oppa'.�Han Seungyeon shyly replied, "Any guy up to my father's age is 'oppa'." MC Yoo Jae Suk asked KARA's�leader Park Gyuri to show an expression to grab the hearts of their uncle fans, so she looked at Ji Sang Ryul and sent him a heart motion, which caused him to look a little flustered. This caused female comedian Shin Bong Sun to jokingly remark that she has uncle fans of her own, and showed off her own "aegyo" by wrinkling her nose. Meanwhile, on this particular episode, Park Myung Soo insisted he watches every episode of 'Happy Together', and when he was challenged by�Park Mi Sun (who asked him who came out last week), he laughed and was unable to answer. Source & Image: Naver