Noteworthy is an all-female a cappella group from Brigham Young University, consisting of nine women who are all students at the university. They were founded to be a female counterpart to the university's male group, Vocal Point. The group was founded in 2003 by student Esther Yoder. Since then the group has competed in a wide variety of singing competitions, including the first season of NBC's "The Sing-Off" in 2009 (where they were sadly eliminated midway through the competition).
In this video, the 2015-2016 members of the group sing a stirring rendition of the classic "Amazing Grace." Technically, this video is not strictly a cappella since that would mean a strictly vocal performance while this video does feature a few light instrumental tracks, but the beauty of their harmonies is in no way diminished by that technicality.