I love how each singer really imparted their personality in this - Pharrell with his chill/cool vibe, Chris Martin and Sam Smith really just going to straight to the emotion, the historical sound of Brian Wilson's voice double tracked like it's always been, Stevie Wonder putting in the soul, Dave Grohl with a heartfelt intensity...

A lot of people seem to be complaining about One Direction participating, but who cares? I'm more relieved at the fact that they are getting a taste of music better than their own by participating LOL

I really noticed Jamie Callum, I hadn't heard of him before, but his voice stood out to me a lot...love his tone.