star turn
From Longman Dictionary of Contemporary Englishstar turnˌstar ˈturn noun [countable] British English the most successful person in a group of people of the same type, especially the most successful actor, musician, or sports playerExamples from the Corpusstar turn• Takenhall proved the annual star turn, winning the Quintin Gilbey Trophy for the third year running.• But he fears it could be at the expense of star turn Byrne.• Scott sees her as Manchester's star turn.• The story is brought to explosive life by two performances that far transcend the usual star turn.