15:08

Mitch Grassi 'Best Vocals'

7:36

Mitch Grassi - High Notes #2

39:27

Simon Stops These Singers on The X Factor!

8:00

scömìche - Mitch being so done with Scott

9:41

Details Revealed About Pentatonix's Kirstin Maldonado

1:20:42

Mitch Grassi and Dylan Chambers IG Livestream 12/19/21

14:58

Pentatonix popspring performance 2016

8:05

13 Times Mitch Grassi's Vocals Had EVERYONE Shook!