Real-life Pitch Perfect': UMD team performs in national a cappella competition
The Sing-Off (TV Series 2009– ) - News - IMDb
10 College A Cappella Groups Totally Slaying It ⋆ College Magazine
A Cappella Music, A Definition, History, and Evolution
The Sing-Off': Meet the Season 4 Singers
The Sing-Off's' Pentatonix on Going From Newly Formed Group to the Show's Winners
Collegiate a cappella competition comes to Salem March 25
A capella awe: How are their voices doing that?!
Pitch Perfect fans rejoice, there's a new a cappella talent show coming to TV
The Sing-Off (TV Series 2009– ) - News - IMDb
All 5 'Sing-Off' Winners Ranked, Because They Can't All Be Number 1
A Cappella Harmony on the Fly in NBC's 'Sing-Off' - The New York Times
Pitch Perfect: A Cappella Finds Its Moment
The Hard Work And Close Bonds Of Competitive College A Cappella : NPR
Award-Winning Northeastern A Cappella Group Pitch, Please! Pivots & Perseveres to Continue to Make & Share Music - College of Arts, Media and Design (CAMD)
Pentatonix put aside covers, deliver a cappella originals on 'The Lucky Ones'
The International Championship of Collegiate A Cappella UK Quarterfinal - The Exchange, Twickenham | Creativity, expression, learning and enjoyment.