In short, it was all kinds of sweet and random rolled into one. Don't believe us? Watch as Harry tells the crowd at the Rose Bowl about Niall riding a tractor, becoming an Irish dancer, and...oh...something about potatoes too. Then he got the crowd to sing Happy Birthday while Nialler danced along.
Harry started, "21 years ago, a small Irish boy named Niall James Horan was born. He liked to roam the fields of Ireland..."
He continued, "On a tractor sometimes. He liked to eat potatoes and stew and he liked to dance. Oh did that boy love to dance. And as the years went on, Niall became a very talented Irish dancer. Niall is 21 years old today, so if you're out in the United States of America tonight, please be careful and watch out because he loves beer and he will be very, very dangerous."
After an outpouring of b'day wishes, Niall tweeted: "Thank you all so much for your birthday wishes , 21 aye ? Jesus ! Can't believe the love you guys are giving me on my bday! Love you !"
via Source
