Miley Cyrus, John Mayer and other odd celebrity couples (SGranitz / WireImage)

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Angelina Jolie and ex-husband Billy Bob Thornton are top Hollywood actors, and both are easy on the eye, so what's the problem? Well, the way they showed their love for each other made them most peculiar; they wore vials of each other's blood around their necks! The passionate pair split after three years of marriage.

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