It's a bird, it's a plane, it's Iron Man celebrating his 51st birthday! The comic hero portrayed by the one and only, Robert Downey Jr., is ringing in his special day today and we're honoring the funnyman with 7 of his funniest social media moments to date.
Of course, Downey isn't all fun and games—especially when he suits up as Marvel's Iron Man, which he'll be reprising on May 6 in Captain America: Civil War. The 51-year-old actor will be sharing the big screen with some of Hollywood's biggest names, including Chris Evans (Captain America), Scarlett Johansson (Black Widow), Sebastian Stan (Winter Soldier) and Elizabeth Olsen (Scarlet Witch).
When Downey isn't dressed up as the iconic superhero, he's giving back to his community and fans—like the time when he presented a 3D-printed, real-life bionic arm to a 7-year-old boy with a partially developed limb—and of course, being a father. The star shares 22-year-old son Indio with ex Deborah Falconer, and he and wife Susan Downey are also proud parents to 4-year-old son Exton and 1-year-old daughter Avri.
While Downey is sure to keep his personal life private, he's more than willing to divulge any details when comes to his work. In fact, he confirmed in 2014 that an Iron Man 4 will happen in the near future. Until then, take a look back at seven of Downey's funniest moments in honor of his birthday: