ring in

Q: Why did the couple get married at midnight on December 31？

A: They wanted to ring in the New Year.

ring inは新年を迎えるという意味がありますが、結婚式にお祝いの鐘を鳴らす（ring)にもかけているのでしょう。

Wishing you all the best as we ring in the New Year.

Let’s ring in the New Year with joy and happiness!