He's got to be one of the youngest tweeters in the world - and already, this evening, he has an incredible 15,800 followers - and the number is rising by the minute!
Yes, Theo Horan, son of Greg and Denise, grandson of Bobby and Maura; and - oh yes - nephew of Niall, has his own Twitter account.
One of his first tweets reads: "hello uncle Niall I love you x"
You can follow Theo's thoughts on @TheoHOfficial_
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