I love a cappella. Hearing the purity of tone, when vocal harmonies blend effortlessly… that is something I really appreciate. When a group like Pentatonix takes the art of a cappella to another level, amazing things happen! I love this cover/mash-up because of the mix of a current hit Dua Lipa’s “New Rules” with one of the old-school hits of back in my day, Aaliyah’s “Are You That Somebody”.