3 sentences for 上场 (shàng​chǎng — appear on stage)

1. 演员们正在后台准备上场。

   yǎn​yuán men zhèng​zài hòu​tái zhǔn​bèi shàng​chǎng.

   The actors are backstage preparing to go on.

   Source: Dong Chinese Dictionary

2. 该我上场了。

   gāi wǒ shàng​chǎng le.

   It's my turn to go on stage.

   Source: Dong Chinese Dictionary

3. 轮到这位年轻的钢琴家上场了。

   lún​dào zhè wèi nián​qīng de gāng​qín​jiā shàng​chǎng le.

   It was the young pianist's turn to perform.

   Source: Dong Chinese Dictionary