I am not actually made of gold...

the Deltones - "Edge of Glory" - arrangement is odd, choiry?

Pentatonix - "Your Love Is My Drug" - good, heavy on fx

the Collective - "Rocketeer" -
...had to leave the room...
North Shore - "The Lazy Song" - good--perfect--what I heard

the Darthmouth Aires - "Animal" - good, poppy

Sonos - "Viva la Vida" - thinner sound? than other groups, but good given their tools... it is thick in the female range
_

Pentatonix - "Piece of My Heart" - reggae reinvention loses the feel of the song; too chipper--nice blend, yes, but...

the Deltones - "You Can't Hurry Love" - solid

North Shore - "Unchained Melody" - well done

the Collective - "Hold On, I'm Coming" - ok

Sonos - "I Want You Back" - meh

the Dartmouth Aires - "Pinball Wizard" - Nick: 'out of sight'; Sara: 'awesome'; yeah