"He's Evil" is a song by The Kinks that has been featured twice in Lost. In "The 23rd Psalm" it is sung by Charlie, and in "Fire + Water" it is played in Liam's apartment. The song was written by Ray Davies and published by Davray Music Ltd.
In "The 23rd Psalm":
[Jin and Charlie are at the shore. Jin is trying to fish with a net. Charlie is holding a homemade fishing pole under his arm and singing.]
CHARLIE: [singing] He's got wit he's got charm/But when he gets rough he'll break your arm/He's got taste, manners and grace/But when he gets rough he'll slit your face/He'll buy you jewels, expensive shoes, uh, oooo -- Hey Jin, do you like the Kinks? Kinks?
CHARLIE: No, man, Kinks. Kinks with a "k" at the end. A kicking ka. Kinks. You know, [singing again] Once you're in love, you're no getting out ha-a-a-a so lookout. It's a good tune, Jin. [Singing] Lookout.
JIN: [Motioning for Charlie to go away, walk down the beach.] 너때문에 물고기가 다 도망가잖아!
CHARLIE: Oh, thank you very much, Jin. I do have a beautiful voice, don't I?
He comes on smooth, cool and kind,
- Wikipedia - "He's Evil"