I really need to stop making Rainbow Dash the lead singer in these things........BUT OH WELL!! MWAHAHAHAHAHA!!!!

Applejack - Alto 2 (Lowest part)
*Bass Line
Twilight Sparkle - Alto 1 (Second Lowest Part)
*Percussion
Rainbow Dash - Soprano 2 B (Third Lowest Part)
*Lead Vocals
Pinkie Pie - Soprano 2 A (Third Highest Part)
*Low Dns
Rarity - Soprano 1 B (Second Highest Part)
*Middle Dns (Backing singer in last chorus)
And Fluttershy - Soprano 1 A (Highest Part)
*High Dns/Descant