What Honey Sing has said is:
.. and he denied to have sung that song! So, does anyone have any proof that he is the actual singer of the song?
I can confirm you it's not made my honey Singh.
When I was in college around 2001 or 2002, then I learnt this vulgar parody from my seniors during ragging. So, this songs exist even before honey Singh started singing.
This also proves that all his songs are stolen for somewhere and not composed by him.