Lyrics:

Hey, hey, hey!
Hey, hey, hey!

Every time I get the feeling I'm sane
Jealousy walks in and cuts me down again
Just like the enemy in my brain
(In my brain)
Just like the enemy in my brain
(In my brain)

Hey, hey, hey, hey, hey!
(Jealousy)
It's driving me insane
(Jealousy)
Jealousy, jealousy is a curse
(Jealousy)
The enemy in my brain
(Jealousy, yeah)

Keeps coming on
Just like a poison in my veins
a suicidal sweat
And the teardrops fall like rain
Just like the enemy in my brain
(In my brain)
Just like the enemy in my brain
(In my brain)

Hey, hey, hey, hey, hey!
(Jealousy)
It's driving me insane
(Jealousy)
Jealousy, jealousy is a curse
(Jealousy)
The enemy in my brain
(Jealousy, yeah)

Fear, fear, fear, fear

Ooh-ooh-ooh, ooh, ooh...
Ooh-ooh-ooh, ooh, ooh...

Like an enemy in my brain
Makes me feels so strange
(In my brain)
When it's in my head
I get confused
And I abuse
And I don't know what to do

Fear!
Fear!

Hey, hey, hey, hey, hey!
(Jealousy)
It's driving me insane
(Jealousy)
Jealousy, jealousy is a curse
(Jealousy)
The enemy in my brain
(Jealousy, yeah)

Hey, hey, hey, hey, hey!
(Jealousy)
(In my brain)
Whoo!
(Jealousy)
(In my brain)
(Jealousy)
(In my brain)
(Jealousy, yeah)
(In my brain)