Let's make this birthday one to remember.

39 years old (Born on August 01, 1985)

Happy Birthday, Gegard Mousasi! You're the only guy who can knock someone out and still look like you're calmly waiting in line at Starbucks. From dominating Strikeforce as their Light Heavyweight Champion to being ranked #10 by UFC back in 2013, you've always made winning fights seem easier than assembling IKEA furniture.

Whether it's your legendary poker face or those lightning-fast finishes inside the cage, you continue to inspire fans worldwide. Here's hoping this birthday hits harder than one of your signature strikes—just don't submit that cake too quickly! Cheers to another year of greatness and effortless coolness, champ!