1) Put your Toxicity CD into your CD player.

2) Go to the last track of the CD.

3) Listen to the great song 'Aerials' and wait to the end

4) After the song is played, just wait, DON'T PRESS ANYTHING.

5) If you notice, the track timer doesn't stop after the original ending. (i think it is 4:23 or something.) and the timer doesn't stop.

6) Eventually, you will start to hear rhythmic drums.

7) Enjoy you secret song!

NOTE: I could be wrong about the times..