On September 6, SBS TV 'Strong Heart' Chuseok Special, Noh Joo Hyun revealed his relations with Lee Seung Gi. It turns out that Lee Seung Gi acted in the KBS drama 'Famous Princesses' with Noh Joo Hyun. Later, Lee Sung Gi even sang at Noh Joo Hyun's daughter's wedding; however, he decided to perform a break-up song. Noh Joo Hyun stated, "People have asked me, 'At a wedding, why is the congratulations song a break up song?'" Lee Seung Gi wittily replied, "But I sang the perfect break up song. I sang 'Desire and Hope'. I thought I needed to sing the song that I could best sing, so that's why I did it," causing the studio to laugh. Lee Seung Gi continued by asking Noh Joo Hyun, "Is your married daughter doing well?" Noh Joo Hyun replied, "Yes," causing Lee Seung Gi to say, "Thank goodness!" with a sigh of relief. Noh Joo Hyun also added, "My son isn't married yet so when he does, I want you to sing at his wedding," to which Lee Seung Gi replied, "I'll sing 'Let's go on a trip' then". In this episode of  'Strong Heart', Bom, Noh Joo Hyun, SNSD's Sunny and Seohyun, Jeon Hye Bin, BMK, Baek Du San's Yoo Hyun Sang as well as Kim Dokyun, Yoon Hee Seok, and Yang Sea Hyung, were the guests. Here is a clip of what Lee Seung Gi would have sounded like at Noh Joo Hyun's daughter's wedding: http://www.youtube.com/watch?v=jaFlOgVc9ZM Source: Naver