Gellar, the star of "Buffy the Vampire Slayer" and the upcoming horror movie "The Grudge," said shopping along the trendy Robertson Boulevard -- where stars like to shop and dine -- is the worst.
"There is nothing worse than trying on an outfit that just looks absolutely terrible and you look outside and there are seven photographers snapping you," said Gellar.
Richie, the star of the Fox series "The Simple Life," said stars are in a bit of a bind over Robertson Boulevard -- home to chic shops such as Kitson, Lisa Kline and Madison.
"All the good shops are there so you have to go there," said Richie.
"It draws so much attention to you when you are walking down the street," said teen star Duff. "It's like, 12 people following you and everybody is looking."
Kitson now allows celebrities to come in through the back door and Lisa Kline has acquired a watchdog and a $12,000 moveable curtain that shields clients while they shop.