Place it at the climax of the edit, just as the main action reaches its high point, then follow it with clapping to sell the applause moment. For an ironic cut, put a fail sound before it so the grand promise lands after the mishap.
About this sound
This 23-second excerpt catches Enrique Iglesias singing the chorus line 'I can be your hero, baby' from Hero, with a soft, soaring vocal over a gentle pop ballad arrangement. It feels tender and dramatic at once, turning simple devotion into something cinematic and a little over-the-top. The line comes from his 2001 single Hero, from the album Escape.