An example of kryptonite is the one food a person is seriously allergic to.
Metallo's alter ego, John Corben, has a Kryptonite heart inside his body.
The record was a surprise commercial smash, selling over six million copies and sending the songs Kryptonite and Loser to the top of the charts.
Songs available on this site include Kryptonite, Loser, Smack and more.
Jonathan's death was foreshadowed in earlier seasons as channeling Jor-El's essence when Clark, exposed to red Kryptonite, ran away from home and ravaged his human body.