Unleashing the Secrets of McDonald's: Odd Facts That Will Surprise You-Weird facts mc donalds part 2

You may think you've heard it all when it comes to McDonald's, but think again. Did you know that the Filet-O-Fish was invented to appeal to Catholics who abstain from meat on Fridays? Or that the "I'm Lovin' It" jingle is one of the most popular tunes in the world? Learn more fascinating facts about McDonald's with our list of 5 strange and unexpected revelations.