I had no idea about this, er, “coincidence” until I saw it in a Cracked article entitled “7 Famous Musicians Who Stole Some of Their Biggest Hits“:
Green Day – “American Idiot“ (2004) (excerpt)
Dillinger Four – “Doublewhiskeycokenoice” (1998) (excerpt)
I’d have no hesitation in placing that in the “Unbelievably Blatant” category.
Here are the full versions:
Green Day – “American Idiot“ (2004)
Dillinger Four – “Doublewhiskeycokenoice” (1998)