Today is World Smile Power Day! You never really need an excuse to be happy, but we're looking for any chance to make you smile. Sometimes, it's so easy to get caught up in the most glamorous parts of the celebrity world like gorgeous bikini bodies, sparkling engagement rings, and the endless amazingness at premieres and award shows; sometimes, we get so caught up in everything else that we forget the little moments that make us smile. Keep scrolling for a few of our favorite inspirational celebrity moments; they're sure to warm your heart right up. Source: Getty / J. Merritt, Jeff Kravitz