Rear View Girls is for Levis?

I noticed this video was everywhere last week as I was seeding my own video "Sexy Rubik's Cube Solve" every site I went to submit it to this was already there and gaining views fast. I liked it, a unique social experiment. But now after almost 5 million views (and one of the top videos around the world) Rear View Girls has been revealed as a viral for Levis? Was the plan to sit back and wait for it to succeed before attaching the brand to it? Did Levis this that having the brand involved would hurt the views? Maybe Levis need to check out what Samsung has been doing with their viral videos. Millions of views AND the brand right there from the start (well the end of the video on some) but that didn't stop it going "viral". Ray Ban have been doing this with their Never Hide films. This time the branding is a little more subtle but it's all about the product. I'm not hating on the rear view girls video (it's still awesome) I just think brands should not be ashamed of themselves and be brave enough to support what is a good video from the start. Unbranded virals with a press release later are useless. The majority of people who have seen the video will miss the important link back to the brand and it didn't need to be that way.