The Beatles were so popular that guitar sales in America doubled in just one year.

On February 9, 1964, The Beatles performed on 'The Ed Sullivan Show.' About 73 million people watched the broadcast, which was 40% of everyone living in the U.S. at the time. This single night changed the music world forever.Before this show, guitar sales were steady but not huge. In 1963, Americans bought about 500,000 guitars. By the end of 1964, that number jumped to over 1,000,000 guitars. This 100% increase is often called the 'Big Bang' of the modern music industry.The demand was so high that famous guitar makers like Fender and Gibson had to change how they built instruments. They moved to fast mass-production to keep up with all the new orders. This era also saw the birth of 'garage bands' as kids in suburbs across the country began practicing in their parents' garages.The 'Beatlemania' effect didn't stop at instruments. It also boosted sales for drum sets, amplifiers, and even hair products.