Niall Horan may have just turned 21 years old on Saturday, but we still think he's the cutest (Irish) boy ever! Even though we are sure you don't need proof, we rounded up 21 photos of his cutest Instagram pics to celebrate his milestone.
As you'll see, the One Direction singer has met a lot of famous people like Katy Perry. But, we still wish we can be one of those lucky stars who pose next to the cutie.
Directioners, click through the gallery and then tell us what pic is the cutest! Don't forget to wish Niall a very happy birthday (if you didn't tweet at him already!) in the comments below.