What is being said at the beginning of Steamboat Stomp by Jelly Roll Morton and what does it mean?

The song begins with a short musical introduction, followed by a spoken introduction by George Wettling, a musician who was performing with Jelly Roll Morton's band at the time. Wettling says, "Ladies and gentlemen, this is Louis Armstrong". This is a significant statement because it was one of the earliest recordings in which Louis Armstrong was featured as the main soloist, marking the beginning of Armstrong's career as a jazz legend.