The query could mean a few different things because the phrase "hey man version acoustique" is highly ambiguous and lacks a single dominant subject. Here are 2 examples of what you might be looking for:
An acoustic performance of a song named by a specific musical artist.
An acoustic version of a song by a band named or a related artist.
Please clarify which musical artist or specific topic you are referring to so that a solid piece of content can be generated for you.