Sadly, Niall Horan is not dating Demi Lovato.
But this blonde-haired member of One Direction still has plenty to celebrate: his band is on fire, he's totally good friends with Justin Bieber and... oh ... right: he's now 19 years old! It's Horan's birthday!
The crooner was already nice and legal, ladies, but now he's really nice and legal! Watch him do his adorable thing on stage in our collection of One Direction videos and send in your birthday wishes to Niall right now!
Among other familiar names turning one year older on September 13:
Ben Savage is 32, Fiona Apple is 35, Tavis Smiley is 48 and Milton Hershey would have been 155 years old today if the candy maker had lived that long.