Throwback Medley Side by Side (Then Vs. Now) 

Imagine Matt having to learn it all form zero. Just amazing

1:44 crying bc of Mitch and Scott's voice on the left XD great vid btw!

This change... It's been 8 years ago... I love this video ❤️

They're really getting better and better.. Wish I could see them live one Day 😇

Left Speaker : when Kevin's bass drum was not as clean as today😂😂

You can just tell here how they've always been good but have improved a LOT in the last eight years

Really well made video!!! I could totally imagine somebody being introduced to PTX with this!

I love the effect with the left/right ears!

Matt did amazing in learning the old songs of pentatonix! I bet it was nerve wrecking because Avi had a different kind of bass that Matt has but overall he did great! I do love both of them though!

I miss the old Pentatonix. I still love them now but they aren’t the same.

This is incredible! Also... you should do evolution of PTX hairstyles. Kirstin and Mitch specifically would be fun to see, but everyone would be cool really. Love your videos by the way! Thanks for all the awesome stuff!

Omg I’m gonna cry

Avi's skin looks a little darker... maybe some sunbaths?

This is amazing! Love it!

Mitch's solo in the dog days are over in 2011 sounds different and I think that the audio sounds low. Btw, I love this video.

3:22 This is heaven for ears when you have earbuds. I didn't want it to finish.

ICONIC. JUST ICONIC . WOW

2011*