> The members of the rap music group 2 Live Crew—Luke, Fresh Kid Ice, Mr. Mixx and Brother Marquis—composed a song called "Pretty Woman," a parody based on Roy Orbison's rock ballad, "Oh, Pretty Woman." ... Acuff-Rose Music refused to grant the band a license but 2 Live Crew nonetheless produced and released the parody. ... The Supreme Court held that 2 Live Crew's commercial parody may be a fair use within the meaning of § 107.
You are free of course to suggest that the law is otherwise, and even that the law itself is immoral and unethical. But as it stands, it is sometimes legal to copy portions of another's work, without a license, sell it for a profit, and be within the law.
And I am free to continue to believe that commercial parody is ethically and legally fine.
But for something to be a parody of something else it needs to comment upon or mock the original. Most songs, whether they use someone else's samples or not, don't fall into that category.
I mean, if you are going to make a mix and play it for some friends or as a DJ at a local club or even release something online for free, then fine, it's still probably technically illegal but I'm not going to get all rustled up about that. But if you start making any legitimate money off it, you better have gotten those rights secured or else you deserve whatever legal consequences you have coming to you -- in both a moral and a legal sense.