Why did Metallica sue Victoria's Secrets?

Metallica sued Victoria's Secret in 1999 for putting out a lipstick called 'Metallica'.

January 14, 1999: Metallica filed a lawsuit against Victoria's Secret and Victoria's Secret Catalogue, citing trademark infringement, false designation of origin, unfair competition, and dilution. The following is from the lawsuit: "Victoria's Secret manufactures and sells lip pencils bearing the mark Metallica. The packaging for Victoria's Secret's Metallica lip pencils also bear the mark Metallica. These lip pencils continue to be sold by Victoria's Secret throughout the United States."

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