Of course, product placements have been around for a long time. Wiki reports that the first product placement was in 1873 (Jule Verne's classic book Around the World in 80 Days) - and the success of the Reese’s Pieces in Spielberg’s ET ushered a new demand for product placements. Since that time, product placements have evolved and “celebrity placements” have grown in popularity.
A lot of star (and starlets) are paid to “be seen” with certain brands (ie. celeb placement). Miss Sixty and Rock & Republic pay celebs to sit in the front row of their fashion shows. (Rihanna gets $100k to attend a fashion show, Beyonce $90k, Kim Kardashian $40k, for example). New York Daily News and Brand Channel speculate that when Ben Affleck and Jennifer Garner nonchalantly pose for the paparazzi with their Starbucks cups or when Kate Hudson and Cameron Diaz parade about the town in their Uggs- they are getting well compensated from the brand.
The going rate appears to be around $100k. The point is this- brand presence around celebs is often orchestrated by the brand.But it appears celeb placement has evolved. One of my readers who has his ear to the ground on new marketing trends sent me a beat on celebrity placements with a twist: negative product placement and negative celebrity placement. The rumor is that some luxury brand companies are sending their competitors' products to celebrities who they think will create a negative associations with the brand. The flagship example involves certain luxury brands that are “aggressively gifting” “undesirable fashionista” Jersey Shores star Snooki with competitor products. The idea is that Snooki has terrible fashion sense and if she is seen with a brand, then the brand will suffer. Since bad is stronger than good and consumers weigh relevant negative associations stronger than positive associations (there is a lot of evidence about this and I will have a blog entry about this in the upcoming weeks), there is the potential for a lot of fast damage to the brand.

Some might think this negative celebrity placement is a good competitive idea, but I’m going to argue that this is a big mistake for two main reasons. First, there may be legal (and certainly ethical) implications if a firm of the competitor can prove that the competitor maliciously sought to damage its trademark. Second, and more importantly, negativity can damage the entire category. This argument sounds like this: If you hit me, I will hit you back harder. We've seen this before in politics. When campaigns go “negative” the result is increased voter cynicism, apathy, and ultimately lower voter turn out. Luxury brands watch out- it is a dangerous game you are playing that can quickly backfire.