Which celebrity was the first to trademark their personal catchphrase as a brand slogan, setting a precedent for celebrity marketing?

In the world of celebrity endorsements, personal brand slogans can become iconic catchphrases that define a star's public image. These carefully crafted taglines often transcend entertainment to become cultural touchstones, marketing gold, and sometimes even part of our everyday language. Test your knowledge of which famous figures pioneered these memorable personal brand slogans before they became ubiquitous in popular culture.

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Paris Hilton with "That's Hot" (2004)
Donald Trump with "You're Fired" (2004)
Emeril Lagasse with "BAM!" (1997)
Michael Buffer with "Let's Get Ready to Rumble" (1992)