We stumbled across the podcast 20,000 Hertz that centers all episodes around the world's most recognizable sounds. As an earbud company -- we're all about sound, so this was like hitting the jackpot! Growing up with McDonalds and aging alongside their marketing and many slogans, this one is chock-full of nostalgia. When you think of McDonalds, what comes to mind? I bet it's not a big guy in a yellow jumpsuit and red hair. It's the slogan I'm Lovin it -- ba, da, ba, ba, ba. In this episode of 20,000 Hertz, we learned about how these five musical sounds came to define one of the biggest brands in the world and how music really transcends all communication and language barriers. We loved the back story and now have a few nuggets to share on Fun Fact Friday in carpool.