Song Requests are one of the main ways fans can support the artists they love. When artists are live streaming and if they have one set up, a Song Request list will be displayed on the side menu, showcasing all the different songs that the artist has in their repertoire. A fan can pick a song and donate Love to bump up that song to the top of the list, making it more likely for the artist to sing it.
To learn more about this feature, check the Song Request List help articles by clicking here.