Pentatonix Cover 'Say Something,' We Feel All The Feelings

Pentatonix Coversay Something

Watch Pentatonix cover When Pentatonix say something, that something's in four-part harmony.

A Great Big World and Christina Aguilera's 'Say Something' is SO full of #feelings -- you can imagine how heartbreaking the somber, piano-driven duet would be if it were performed a cappella. Well, imagine no more, because the song just got a passionate ' Pitch Perfect ' makeover by the YouTube stars of Pentatonix .

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The Season 3 winners of ' The Sing-Off ' tackle the hit with only five voices and a cello. In their more than capable hands (er, throats?), the chorus becomes a swelling plea that's -- dare we say it? -- even better than AGBW and Xtina's already ***flawless original version. #NoShade

Much like we were after witnessing Pentatonix's take on ' Royals ,' we are dizzied, stunned, speechless -- basically ALL the adjectives related to shock. Oh, and we want to give a special shout-out to the cellist on the right who's beatboxing and killing the fretless game at the same time.

Anyway, the clip's already got over 2-million views, so check it out now for the #CoolCred before the rest of this great big world's raving about it.

+ Watch Pentatonix's 'Say Something' cover .

Photo credit: Pentatonix/Madison Gate Records via YouTube