It was added a few years later as a hidden track.

Then we tried to make it the hidden track, and that wasn't effective.

There is also a hidden track following the last song.

It also includes a second version of Strong as a hidden track.

Using many short tracks of silence before the hidden track.

Often it is unclear whether a piece of music should be considered a hidden track.

The last song appears as a hidden track after about 5 minutes of silence.

He reluctantly agreed, although only if it was a hidden track.

However, the hidden track is not featured in the single release.

The first few released have 2 hidden tracks, these were put on by mistake.