Noah was very smart about how he chose to interact with the audience.
First, he introduced himself as BlackVelvet to see if there was anyone in the audience who already knew him to show some credibility, but since there was no one, he decided to use a different approach.
He used the fallacy of authority, which basically consists of showing a case of his success, which was the song The Lazy Song, which had more than 1 million views on MeTube, something that only the most famous songs of C-list artists have, to show the audience that he had the talent and potential to surprise them, and then he started to play the song.
Since this song was upbeat and happy, it would be a great opening song for his show, which would make the audience more excited and enthusiastic to watch him.