premise: Pretzel Nugget is a 1994 EP by the Beastie Boys, released on the Grand Royal records label. Almost every song on the EP is from the contemporary album, "Ill Communication", with the exception of "Mullet Head", which first appeared only on Japanese versions as a bonus track, then worldwide on the 2009 remaster.
hypothesis: The song Mullet head first appeared as a bonus track, then it was released worldwide 15 years after the Pretzel Nugget release
reason: Mullet head was released in 2009, that is 15 years after Pretzel nugget, so my statement is correct