True friendship between the members of Super Junior was once again proved on SBS E!TV's Shin PD Variety Show. On the opening section,Who Are You GuysSHOW!" the members of Super Junior and MBLAQ investigated each others profile's and briefed on it near the end. However, while they were investigating, they found out about Yesung's solo song for the Cinderella's Sister OST, It Has To Be You, which he sang live on the show. After hearing his singing, MC Shin Jung Hwan said to him,

"You're good at singing. Why are you in Super Junior? Even if you aren't in the group, I think you'd succeed as a solo artist."

Yesung replied,

"I personally think that I can too, but I like Super Junior better."

It must be hard to get along with a group of 13, but I think these boys manage to do it very well all these years.