Every year the group selects an entirely new list of songs, priding themselves on rarely having repeated a song since the group’s founding in 1994. However, there exists a list of songs that are such fan favorites the group does them every summer. Many of these songs have been in the repertoire since 1994, and it’s not often when a song is added to this list. However, this arrangement of “September” from 2015 joined the ranks and is now one of the most beloved songs in the group’s repertoire.