“A Cappella Live!,” the touring production featuring singing acts Committed, The Filharmonic, Blake Lewis and Women of the World, has some big connections to Baton Rouge. Deke Sharon, the show’s ...

Few people were aware of the 1994 single “Insomniac” by the rock duo Billy Pilgrim, and it quickly sank into obscurity. But a cappella groups can’t stop singing it. We set out to find an explanation.