William: Who's headlining on Sunday?
周日誰領銜主演？

Yang Li: What do you mean?
你什么意思？

William: Who's headlining? Ah, I think I know why you're confused. 'To headline' doesn't mean to be in the news. It means to be the main act in a festival. The main act is 'the headline act'.
誰領銜主演？我想我知道你糊涂的原因了。To headline并不是上頭條的意思。此處指在節日里主演。主要的活動就是“領銜主演”。

Beyonce is the headline act at Glastonbury this year.
Yang Li: Oh right. To headline 意思是音樂節上的領銜主演 the headline act. Well, I think Beyoncé Knowles is headlining on Sunday. She's the headline act.

William: Ah yes, Beyoncé. I've heard of her. Is she the one that does that dance, like this...

Yang Li: 別了，別了 William, 讓我看著怪難受的，你跟 Beyoncé 舞姿相比還差點!

William: (laughing) OK, OK. So, what time do you leave?

Yang Li: Eh?

William: What time are you going to Glastonbury? It's quite a long way, you know. You should probably be getting a train about now.

Yang Li: 哈哈，你還信以為真了！其實我不去，你知道票價有多嚇人嗎！而且一想到露宿在外，濕濕漉漉，泥泥漿漿的，那些臨建廁所 oh no, no, no！我寧愿在家里看電視，舒服多了。

William: Oh right, OK! Well for everyone who is going to a music festival this year, we hope that you have a fantastic time. I hope that the line-up is great and that the headline act doesn't disappoint. Bye!

Yang Li: Bye.