What is Jerry Lee's family background? What is grandpa's identity? He mentioned his grandfather in a previous program "Run", when a chorus was held by the Yellow River. For various reasons, he couldn't join the chorus, but he was also appointed as an announcer. Jerry Lee's announcement can be said to be very impassioned, and his righteous performance made the whole performance more solemn. After the chorus performance, Jerry Lee was also very emotional, saying that although he did not take part in the chorus, he was more impassioned below, and his grandfather was also inextricably linked with Yan 'an. His father sent him a black-and-white photo of his grandfather in Yan 'an, and everyone guessed who Jerry Lee's grandfather was. It seems that this society is no longer enough to fight for its father, and people are beginning to do it.

Jerry Lee said that his grandfather studied at Kangda University in Yan 'an for 37 years. At that time, universities were held to train senior generals against Japan. Only three graduates were the pillars of the country. Although Jerry Lee's grandfather doesn't know who it is, his position is not low.