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Remember when like every band in the 90s had ”hidden tracks” by filling the ends of their albums with silence?
(hexbear.net)
It kind of failed if you had a fancy CD player (or CD-ROM drive) that could show the lengths of tracks, if every other song on an album is 3 minutes long, then the last one probably isn't 30 minutes long.
I don't know what the point of this post is, other than that it sucks when a modern release removes the hidden track 
As a kid I had Weird Al Yankovic's "Off the Deep End" and it had a hidden track at the end. It's a few seconds of a cacophony of random instruments, metallic screeching and Al himself screaming.
I found out about its existence the hard way when I dozed off while playing the CD. I got woken up by it, scared shitless and confused.
Edit: Found it. (CW: sudden loud noise)
I found a YouTube link in your comment. Here are links to the same video on alternative frontends that protect your privacy: