Serena suddenly smirked.
"The Surge".
This song was one of Serena's most modified songs.
During the creation period, she made no less than 20 changes, and it was not until a year later that the complete version was released.
This song had a good melody, and it also tested the singer's control of the melody and the release of one's voice.
In short, it was a song with a relatively high difficulty.
Serena naturally knew that Mary wanted to win with a highly-skilled song. However, she did not know that this song was centered on the singer's emotions and voice.
When Serena created this song, she used Tommy's voice to compose it, so she was naturally not worried about this problem.
However, she knew Mary's voice very well. She could not sing the essence of the song at all.
Tommy originally thought that his sister was too soft, but he didn't expect her to use such a big move.
He was slightly surprised.