![[Official Video] Little Drummer Boy - Pentatonix](https://i.ytimg.com/vi/qJ_MGWio-vc/sddefault.jpg)
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Pentatonix Penatonix PTX PTXofficial Mitch Grassi Kirstie Maldonado Scott Hoying Avi Kaplan Kevin Olusola K-O. Cello Cellobox Beatbox A Cappella Harmony Acapella Acappela Choir Singing Competition The Sing-Off Sing-Off Reality TV Sing Singing Chorus Sara Bareilles Shawn Stockman Ben Folds Ben Folds 5 American Idol X-Factor The Voice Voice Pitch Perfect