What makes Bash! by Rockapella notable?

'Bash!' is significant for its heartwarming take on holiday classics, showcasing Rockapella's distinctive vocal arrangements. The album has become a seasonal staple, influencing subsequent a cappella ensembles and contributing to the growing popularity of holiday-themed music in contemporary arrangements. Released in 1990, 'Bash!' marked Rockapella's first major holiday album, following their successful self-titled album from 1988. At this point in their career, they were gaining popularity through performances and television appearances, establishing themselves as a leading vocal group in the a cappella genre.