Sometimes, it is incredibly difficult to smile. Even for the most positive person, there are circumstances in life that sap the joy right out of you and supplant happiness with incredibly sadness. Being sad or worried is a big-time drag, but it’s nothing that a little “happy” music can’t rid of. Sure, a good song can’t erase the debt one has built up or that bad breakup over irreconcilable differences, but it can certainly be therapeutic. Here are 15 Songs That Will Make You Smile.