Great reaction, actually laughed 😂 The second guitarist is the vocalist. The clean vocals were from the keyboardist who wasn't shown because he has not been announced as of the filming of the video.
I love this video. Also, the girl at 5 minutes and 20 seconds with the blue Berka on is in the band Voice of Baceprot and they are really damn good. Check out their song God, Allow me to Play Music if you haven't already.