Lots of 1D fans have actually mixed up Jacob with the real Harry! They've even asked him to marry them.
One Direction are so famous, and now a few of their non-celeb lookalikes are starting to get a little famous too.
That's what happened to Jacob Skelton. He's 15, and he's from Milton Keynes, England. His friends and teachers started noticing that he looked just like Harry, right down to his fair.
He really got famous when a friend posted this photo on Facebook. He got tons of new friend requests, and even landed on the cover of The Sun.
When fans see him in the street, they yell out “Harry!” and a few have even declared their love for him.
Wambie girls, do you think Jacob looks like Harry?