No wonder why Sesame Street's Elmo is so sickenly happy & sweet. It used to be that green was the color of envy and red was the angriest. Unless you're a fictional character then looking green is apparently a nightmare. The Green Goblin, the Grinch, the Wicked Witch, the Great & Powerful Oz, Oscar the Grouch, Shrek... I expect there will one day be musicals devoted in some part to the woes of Green Lantern, Green Hornet, Incredible Hulk and probably even Clue's Mr. Green will belt out a tune sooner or later.
Clearly you need to acquaint yourself with television's Lorne, of Angel fame. He's a green empath demon who sings and can tell one's future by hearing one sing.