Which fast food chain paid Justin Timberlake $6 million to sing their famous 'I'm Lovin' It' jingle that debuted in 2003 and became one of the most recognizable sonic logos in advertising history?

Marketing jingles might seem like simple tunes, but they've become cultural touchstones worth millions to brands. Some advertising melodies are so powerful they've outlived the campaigns that created them, becoming permanently embedded in pop culture. Test your knowledge of these iconic sonic brand identifiers that have shaped consumer behavior and pop culture for decades.

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McDonald's
Burger King
Wendy's
KFC