The song "Mom and Dad" was originally sung as Po and was released on 2011121. Some of the lyrics are as follows: people are outside, but their hearts are at home, and they can't let go at home. It's my parents and my old father. I was afraid of him since I was a child, because I was naughty and disobedient, and he often hit me. Finally, one day, I grew up and left home to make a living. On the day of parting, he didn't speak, his eyes were silently shining with tears, he was outside and his heart was at home.