Considering all the time and effort -- just the sheer amount of people who listen to a major label release during production -- that gets invested in a record, it's surprising how many little mistakes can fall through the cracks. On the other hand, it really depends if you view all of these as "mistakes;" music is simply about the feeling (, man). The users on the subreddit /r/Productionglitches try to figure out whether the anomalies they hear are legit editing oversights or just mistakes that they decided to keep on a whim. Either way, these might ruin (or enhance) your experience going forward. No looking back:
1. Panic! At the Disco - I Write Sins Not Tragedies
At 2:14 there's an Auto-Tune glitch on the word "haven't"
2. The Police - Roxanne
Sting accidentally sits on the piano at the beginning of the song and laughs.
3. War - Why Can't We Be Friends?
Another blooper two seconds in; piano mishit.
4. Christina Aguilera - Beautiful
You can hear the accompanying instrumental track -- playing from the headphones she's wearing in the vocal booth -- bleeding into her vocal feed at 3:45.
5. James Blunt - You're Beautiful
Starts singing four bars too early at 0:14. Bizarre that it was kept.
6. The Kingsmen - Louie Louie
Another case of vocals coming in too early. Here at 1:55
7. M.I.A. - Paper Planes
There's a pop before every chorus. You can't unhear this.
8. Red Hot Chili Peppers - The Zephyr Song
Vocal blip at 3:01
9. Megadeth - Paranoid
Drummer thinks there's another verse at the end of the song (at 2:22). Lead singer says "hey!" and they argue.