1) Green Lantern Corps = the Green energy of Willpower
http://www.youtube.com/watch?v=3N5NYUavKr0
In brightest day, in blackest night,
No evil shall escape my sight
Let those who worship evil's might,
Beware my power... Green Lantern's light!
2) Sinestro Corps = The Yellow energy of Fear
http://www.youtube.com/watch?v=JtH1xQO0uY8
In blackest day, in brightest night,
Beware your fears made into light
Let those who try to stop what's right,
Burn like my power... Sinestro's might!
3) Black Lantern Corps = The Black energy of Death
http://www.youtube.com/watch?v=XbM9n4xRyB4
The Blackest Night falls from the ski