Why will Victor Ma's son cry tomorrow?

I haven't been home with my parents for months. Victor Ma 1996 was born in New York, USA on March 20th. His ancestral home is Xi 'an, Shaanxi. He is a Chinese-American male singer and film actor. Victor Ma took part in the singing of "The Son of Tomorrow", because she hasn't been home to see her parents for several months, so she couldn't help crying and showed her true feelings in the singing.