Which celeb makes you want to buy stuff? Ellen and Rihanna make best endorsers

CoverGirl
CoverGirl

For years now celebs have been the preferred marketing tool to hawk products, but sometimes their level star wattage doesn't always make us want what their selling.

Ad Age is reporting that Starch Advertising Research examined 2,725 full-page (or larger) ads featuring celebrities in magazines from October 2008 through the first quarter of 2010 to determine the best-selling stars in 10 major advertising categories. Many people questioned Ellen DeGeneres being added to the CoverGirl roster and said she didn't seem like an authority on makeup, but it turns out the cosmetics brand knew what they were doing. 91% of women read her ad for CoverGirl & Olay Simply Ageles Foundation in the March 2010 issue of House Beautiful, and 30% of these readers said they recommended the product as a result of the ad. Wow!

Other celebs who made you run out and buy their products were New York Yankees' closing pitcher Mariano Rivera (Canali Clothing), Holly Robinson Peete (Colgate Total Advanced Whitening Toothpaste), Rihanna (CoverGirl Exact Eyelights Mascara), Alana de la Garza (Garnier Nutritioniste Skin Renew), Madonna (Dolce & Gabbana), Rebecca Romijn and Christie Brinkley (National Fluid Milk Processor via Got Milk?), Mary J. Blige (Chevrolet Traverse) DMC-Daryl McDaniels, Russel Simmons, David Beckham, and Katy Perry (Adidas), Sir Sean Connery (Louis Vuitton luggage).

We don't doubt Ellen's star power, but we can't believe Sean Connery sells more than, say, Beyonce or Sarah Jessica Parker. Ad Age also noted that Tiger Woods was a total endorsement bomb even before his cheating scandal.

Have you ever bought an item because it was advertised by someone famous? Which celebrity makes you want to run out and buy what they're selling?