"Beach (Demo) - Plok" is a high quality rip of "Beach" from Plok.
The rip is a recreation of "What is Love" by Haddaway in an unknown soundfont not related to Plok. The vocals of "What is Love" remain relatively unaffected, although only the chorus appears.
The joke is that the question "What is Plok?" has the same number of syllables and sounds similar to the phrase "what is love". The title of the rip's track release is a nod to its joke.