You may have heard about this case, in which the 9th Circuit Court of Appeals sided with Paris Hilton in her case against Hallmark over the phrase "that's hot" -- popularized by Hilton's use on her reality TV show. More recently, singer Beyonce was sued by Columbus-based Abercrombie & Fitch over her use of the word "Fierce" for her signature perfume. The clothing company claims that the singer's use of the word would create confusion with A&F's own Fierce brand.
From Law.com
From Law.com