Ok, I’m sure this topic has been covered before, but nothing like it is popping up on “Your topic is similar to…” so here goes.
I finally left my house and braved going out to get a haircut this morning. While there, Journey’s “Wheel in the Sky” played in the background. I’m not a huge Journey fan, but it’s a song I’ve heard a million times on FM radio. Every time I’ve heard the song I swear in the first line “Winter is here again, oh lord” it sounds like Steve Perry is slurring the ‘is’ like he’s drunk or something: “Winter ish here…”. I’m surprised that take made it to the record.
I’m sure there are a ton of other examples. I know there’s a Beatles song where, if you turn it up you can hear one of them (probably John) say ‘fuck’. It’s not noticeable at all until it’s pointed out, then you can’t NOT hear it. I don’t remember the specific song though.