G. Star Swain posted a video to YouTube that shows her special moment at the Lincoln Memorial on June 16:
The video has already been seen by more than 12,000 people.
In the video, you can see how after a few lines, all of the attention is turned to her. At 2:10 into the video, one of the spectators even puts her bag down and points up in the air as Swain hits a high note.
It's certainly a moment the people at the park will not forget.
According to her Facebook page, Swain is an assistant principle at a school in Florida. She posted a message of thanks on Monday: