An encore is an additional performance added to the end of a concert, from the French "encore", which means "again", "some more"; multiple encores are not uncommon¹. Encores originated spontaneously, when audiences would continue to applaud and demand additional performance from the artist after the concert had ended.

安可，来源于法语词encore，意为“再一次、再来点儿”，指演唱会或演奏会结束时额外增加的表演。多次安可返场的情况也很常见。安可最初是自发行为引出的，演唱会或演奏会结束后，观众都会持续鼓掌并要求艺人追加表演一些节目。

In some modern circumstances, encores have come to be expected, and artists often plan their encores. Traditionally, in a concert that has a printed set list for the audience, encores are not listed, even when they are planned.

到了现在，安可已经成为大家期待的一个环节，艺人也会提前计划好安可阶段的表演。不过，按照惯例来讲，就算提前有安排，安可曲目也不会出现在演唱会或演奏会的节目单上。