Happy 51st birthday to the one and only Jimmy Fallon! It's hard to believe that our favorite late night host is officially over the half-century mark, but let's be real, he still acts like he's 21. From hilarious lip sync battles to spot-on impressions, you never fail to make us laugh until our sides hurt. Here's to another year of endless talent, contagious energy, and those iconic laugh-filled sketches. Cheers to you, Jimmy! #51neverlookedsogood