Swedish Blogger Becky E-J tells me that the production company for the shoot was Callboy. She has written a short account (in Swedish) of her day on the shoot, with some behind-the-scenes photos.
Benny was so down-to-earth and ‘normal’, she said it was impossible to think of how successful, famous (and wealthy!) he is.
Becky can’t recall the name of the song but says it was recorded for "some of his employees" at the hotel and the video is destined for the Hotel Rival website (among other places) in time.