Paul Simon once revealed what three Beatles songs would stand the test of time, and you might already be a fan of them.
When you want to smile, listen to The Beatles. And these four songs are a great place to start in your quest for joy.
Even casual fans are familiar with the Beatles' album-opening songs. Three of them went to No. 1, either in the U.K. or America, including 1964's "A Hard Day's Night," 1965's "Help!" and 1969's "Come ...