What is the relationship between Miriam Yeung and Jordan chan?

Miriam Yeung and Jordan chan are both singers. Because the two children have a good relationship, the two families are very close. They often visit each other, get together and travel together. For a long time, Miriam Yeung's husband Ekin Cheng and Jordan chan became good friends, and Jordan chan's wife Cherrie Ying and Miriam Yeung became best friends. So Miriam Yeung and Jordan chan are friends.