Birthday boy Leonardo DiCaprio struts his way into 43

Leo walking on the set of Inception

It was 2009 when Leo was snapped sauntering around on set in Paris, arms swinging, head cocked to the side, a smile on his face denoting the pleasure of movement. It was the image that launched a thousand memes — including Leo wandering through Mordor, Leo inspiring an official dance and accompanying rap, and even a blog. Perhaps he was just enjoying the thrill of being on a movie set, or he was musing about how scrambled our minds would be after seeing Inception in theaters. Regardless, Leo is greatly enjoying himself — and we’re greatly enjoying that.