The song "Guess" was written and composed by Gu Feng and sung by Siqin Gaoli and Gu Feng. It was released on April 14, 2010 and was included in the album "Exit" in the same year. The lyrics I still can't say it, accept your confession, I'm still afraid of getting hurt, I'm still wandering, too much tenderness comes, I don't know whether I should love or not, I hope you can understand, I need your waiting, don't let me Guess, I don't understand. What can't be said, what can't be confessed, don't ask me to guess, I can't guess. Gu Feng is a mainland singer and actor. He was born in Zhenxiong, Yunnan. He graduated from Yunnan University of the Arts. In 2009, he won the Best Composer Award on the Chinese Music Popular Chart for "Making Mistakes". At the end of 2011, he sang the theme song "Immaculate" from "Immaculate Beauty Like Clouds". .