This became front and center with the advent of American Idol.
Start the song standing at the microphone, take the mic off the stand during the first chorus, make the second verse as short as possible, and then hit the highest note you can at the end of the second chorus, no outro.
As long as that last note gets belted out the crowd will cheer.
TV may have worn out this trope but there’s a reason it works.
Ending on a high note, literally or metaphorically, just makes sense.