Zhou Xuan's The Full Moon Flower. All right. Your grandparents should be over 70. Zhou Xuan was a famous singer in the Republic of China. Your grandparents may be familiar with them, which may bring them some good memories. Grandparents' golden wedding, 50 years, what a wonderful memory, the protagonist is them, and it will be so sweet to pick a few nostalgic songs. Besides, the lyrics of this song are also very good.

Clouds and fog disperse, and the moon shines on people.

Reunion and happiness are the best today.

Yuanyang playing in the shallow pond

Red skirt and green cover lotus.

Double pair, yeah, love, love.

The wind in the garden blows to the beautiful flowers.

Tender feelings and sweet feelings are all over the world.