スペシャルゲスト

noun

special guest; guest performer

Commonly used in TV, radio, events, and entertainment contexts for a notable invited guest or performer.

• 今こん夜やの番ばん組ぐみにはスペシャルゲストが登とう場じょうします。

  A special guest will appear on tonight's program.

• ライブにスペシャルゲストとして有ゆう名めいな歌か手しゅが来きた。

  A famous singer came as a guest performer at the live concert.