On the September 11th episode of "Yoo Hee Yeol's Sketchbook", four of the greatest singers (my opinion) got together to perform the classic, "That's What Friends Are For". Kim Bum Soo, Jung In (LeeSsang), Kim Yun Woo, Jung Yup (Brown Eyed Soul) filled the stage with their amazing vocals. If you were not awestruck by this performance, get out, NOW! After watching them perform the song, I immediately remembered that Sunye and Yeeun from the Wonder Girls, Jokwon from 2AM and the man, JYP himself performed this same song a while ago. So guys, do you like the Crazy-Vocal-Version, or the Pop-Idols-Version? Kim Bum Soo, Jung In, Kim Yun Woo, Jung Yup video: son1707 Sunye, Yeeun, Jokwon and JYP (Park Jin Young) video: borderline237 In this same episode, each of them had their own segment where they flaunted their hit songs. Shall we all watch in awe together? Kim Bum Soo "I Miss You" Kim Bum Soo "Slow Man" Kim Yun Woo "Lie-like Time" Kim Yun Woo "Greeting" Kim Bum Soo and Kim Yun Woo "Lately" - In my opinion, this was the BEST performance in this episode. I was left speechless! Jung In "Love Is" Jung In "We Gotta Be" Jung In and Jung Yup "Did We Truly Love" Jung Yup (Brown Eyed Soul) "Nothing Better" - This is the one that gave me shivers. His voice is just celestial! Jung Yup "Hello" - special serenade to a special audience member! video credits: VDBSKV