A cappella, Italian for in the style of the church, refers to music for unaccompanied voices. Just a decade ago it was nowhere near the radio dial. Now it’s everywhere: college campuses, Hollywood blockbusters, prime time reality television, and the Grammys. A cappella hasn’t been this big since Gregorian chant. Why has a cappella returned with such a vengeance? We try to find out why in this four part episode. [Introduction] The Tallis Scholars – Missa Brevis: Kyrie Middlesex A Cappella – Sound of Silence Pentatonix – Daft Punk [Act 1: Undercover Barbershop, featuring journalist Kevin Roose] Buffalo Bills Barbershop Quartet – The Only Girl In The World Dion & The Belmonts – I Wonder Why Barbershoptags.com – I Love to Sing ‘Em The Barbershop Singers – My Wild Irish Rose Buffalo Bills – As Time Goes By Vocal Spectrum – When I See An Elephant Fly OC Times – Come Fly With Me [Act 2: How To Become A Youtube Star In 3 Easy Steps, featuring musician Matthias Harris] Halestorm – Bad Romance (Lady Gaga cover) Matthias Harris – Somebody That I Used To Know (Gotye a cappella arrangement) The Stiff Dylands – Ultraviolet Gotye – Somebody That I Used To Know (feat. Kimbra) Mike Tompkins – Teenage Dream & Just The Way You Are (Katy Perry a cappella arrangement) Matthias Harris – Boyfriend (Justin Bieber arrangement) Matthias Harris – Home [Act 3: Sing On / Sing Off featuring Manjula Raman from Element] Element – Royals (Lorde a cappella arrangement) Element – Raise Your Glass (Pink a cappella arrangement) [Act 4: A New Golden Era] Pentatonix – Daft Punk  Learn more about your ad choices. Visit podcastchoices.com/adchoices