Music industry? or better say.. sample industry?
I even started thinking I could be paranoid and to test that, I started compiling a few very similar songs in a text file… here are a few examples I collected:
- Check out Black Eyed Peas’ Shut Up against Kylie Minogue’s Can’t Get You out of My Head… haha no need to even try… someone did it already!
- Doesn’t Britney Spears’ Toxic sound similar to — guess what — Linkin Park’s Faint? Doubtful? MTV wasn’t!
- Green Day’s Boulevard of Broken Dreams? Wow I’d swear I heard those chords already.. Aha, wasn’t it on Oasis’s Wonderwall? But wait, there’s more! Try Lenny Kravitz’s Fly Away!…
- Nirvana says it Smells Like Teen Spirit… well, I’d say it smells like Pain’s Shut Your Mouth…
- Gwen Stefani’s Luxurious sounded familiar? Try Notorious’ Big Poppa — no, wait… it actually comes from Between the Sheets by The Isley Brothers!!
Well, Rob Paravonian couldn’t have explained it better:
Ladies and gentlemen, I present you the 5th most creative youtube video from 2006:
Pachelbel Rant
PS - He dindn’t mention it, but the Dragon Ball GT theme song is also based on the same chords… No wonder I read somewhere a conspiracy theory of a secret software that major recording companies use to compare their new songs to a database of successes, and the thingie would predict the likeliness of it becoming or not a hit…
update: I just found one of the seveal small pieces of paper where I’ve been putting these notes across the years… there’s a combination I didn’t write above: “Mission Impossible” (as interpreted by Limp Bizkit for instance) and Bill Withers’ “Ain’t No Sunshine”… not exactly alike but the chords are indeed similar.
update II: I just found a post (thanks, Mateus!) from Sedentário Hiperativo which deals with exactly this theme. Plus, it has a video 
By the way, Can you stop writing bullshit and try to post something with more creativity.