The phrase "a knockout performance" is correct and usable in written English.
It can be used to describe an outstanding or impressive performance, often in the context of entertainment, sports, or any competitive field.
Example: "The actor delivered a knockout performance that left the audience in awe."
Alternatives: "an outstanding performance" or "a stellar performance".
It's a knockout performance.
Claire Booth heads up a fabulous cast with a knockout performance in the title role.
In March he led Christian Tetzlaff in a knockout performance of Gyorgy Ligeti's Violin Concerto (1992).
This brutally funny revival of Eugène Ionesco's play stars Geoffrey Rush in a knockout performance.
But there are some casting errors so misjudged that even a knockout performance can't rescue them.
There's a knockout performance from David Dawson as the gimlet-eyed clown who turns his act into a weapon.
"Working in the independent sector, you're in the lunatic gang anyway, hoping for some magic – a really unusual story or a really knockout performance – so of course awards are important.
Langan told the Guardian that "working in the independent sector, you're in the lunatic gang anyway, hoping for some magic – a really unusual story or a really knockout performance – so of course awards are important".
The Californian mandolin player Chris Thile won Musician of the Year, and demonstrated why with a gurning, knockout performance before eulogising about the British folk scene: "This community is fantastic".
I would never have guessed that she wasn't a regular based on her knockout performance, from Angelica's mercilessly quicktime rap verses to her powerful singing ― and an emotional delivery that packed every note with luminous mischief, conflicted regret or wounded rage.
After her knockout performance of "With A Little Help From My Friends" with two puppets on the first night of the finals on Tuesday, panel judge Cowell said she would emerge victorious.
