这个短语来源于剧场。演员们在舞台上表演时，就直接面对着乐池中的乐队，在舞台上，演员经常会由于紧张或怯场而造成忘词等尴尬的局面，只要音乐一响，演员就没有任何选择的余地，只能去 face the music（必须承受出现的局面）。人们遂用 face the music 指承担自己行为的后果。

举个栗子

Don't escape, you should face the music when you did something wrong.

别逃避，做了错事就要勇于承担后果。

After failing a math test, Tom had to go home and face the music.

数学考试挂掉了，Tom不得不回家接受惩罚。

He’s been cheating us out of our money for years, and now it’s time for him to face the music.

他骗我们钱骗了这么多年，是时候让他接受惩处了。

Mary broke a dining-room window, and had to face the music when her father got home.

马丽打碎了餐厅的窗户，爸爸回家肯定会惩罚她。

再比如：双十一很多人都肆意地剁手，现在吃咸菜还借呗花呗的日子是自己造成的。

He's squandered his money, and now he's got to face the music.

他把钱挥霍光了，现在得承担自己行为的后果。