[Witch_Queen]

Here are some more:
Bilbo: "The itsy bitsy Spider"
Theoden: "I saw the light"
Legolas: "Never too old to be young"
Arwen: "I'm wishing"
Legolas and Gimli: "Following the leader"
Boromir to Frodo: "Trust in me"
Sauron's army: "Steady as the beating drum"
Gollum: Just around the riverbend" and "Mine, mine, mine"
Arwen and Aragorn "Beauty and the Beast"
Thranduil: "Be our guest"
Aragorn, Legolas, and Gimli (Halls of the dead): "Poor Unfortunate Souls"
Aragorn: "I've got the power"
Sam to Frodo: "Friend like me" and "Friends for life"

I think thats enough. Too much for my mind to comprehend.