You know that saying that everyone has a twin in the world? Well, One Direction's Niall Horan apparently has found 5 Seconds of Summer's drummer's twin!

Who Makes 5 Seconds of Summer's 'Visions Come To Life' On Stage?

The 1D star while in New York hit up the United States Open Tennis Championships and has continued to watch it via television when not performing on his band's world tour that's presently in North America.

On Sunday the Irishman swears he saw 5SOS' Ashton Irwin on his television as "a ball boy."

5 Seconds of Summer Ecstatic Over First Live Performance Of 'Jet Black Heart'

Irwin entertained Horan's tweet by tweeting the hashtag "#dreams".

Perhaps curiosity got the best of Irwin so he tuned into the match and saw his twin, telling Horan, "damn it you are so spot on," while sharing a photo of his look-a-like.

The look-a-like is the ball boy directly behind tennis superstar Novak Djokovic. Horan then shared a photo he took from when he attended one of the days at the Open and dished, "I seen him the other day when I was there too ahahah."

The ball boy in question definitely has similar hair and bone structure to Irwin.

Do you think he looks like Irwin?

Tags: 5 seconds of summer Niall Horan Ashton Irwin