Justin Timberlake's song 'Mirrors' is one of my most listened to songs of 2013, but I stumbled across the cover performed by Boyce Avenue and Fifth Harmony and immediately preferred it to the original.
In the original, JT's performance is flawless (my personal opinion) and his voice is definitely suited to songs like this. The simple accompaniment isn't too overpowering of the vocals, and therefore gives the voice the limelight.
When listening to the cover by Boyce Avenue and Fifth Harmony, they started off by having Boyce Avenue's front man (Alejandro Manzano) singing the opening line, followed by lines performed individually by each of the Fifth Harmony girls. When they all come together as one, the performance is flawless with perfect harmonies, and I think this is why I prefer the cover to the original. Having six voices instead of one gives the song more depth and makes it fuller and (personally) nicer to listen to.
Obviously these are entirely my personal opinions, and you may think differently, but give them both a listen. Here are the links:
JT's original:
http://www.youtube.com/watch?v=uuZE_IRwLNI
Boyce Avenue and Fifth Harmony cover:
http://www.youtube.com/watch?v=fvEZUbzqqyM
Enjoy :)