I used to think:
that in AC/DC's song "Dirty Deeds Done Dirt Cheap" they were actually saying, "Dirty Deeds, The Thunder Chief".
that the Song "Barbara Ann" was actually called "Bop-A-Ran". Bop Bop Bop, Bop Bop-A-Ran!
that in The Pussycat Dolls song, "When I Grow Up", they were saying "When I grow up I wanna have BOOBIES", but apparently they are saying "When I grow up I wanna have GROUPIES." Whatever... I still stand by that one!
that in U2's "Do They Know It's Christmas?" they were singing "Vi-Va-Hoooooooo!" instead of "Feed The Wooooorld!"