Niall Horan is stunned by the reaction to his debut single.

Niall Horan

Niall Horan

The One Direction singer surprised fans by releasing 'This Town' on Thursday (28.09.16) afternoon and he is overwhelmed by the positive response to the track.

He tweeted: "Blown away by all your amazin comments ! You can listen to 'This Town' here

"Guys seriously . I cannot thank you enough for the reaction to the song . I've been doing interviews all morning

"Have only really got a feel for the reaction now as I'm reading online. Really appreciate the support from you all ..(sic)"

And hours later, the popularity of the song was still sinking in for the 23-year-old star.

He posted: "wow I only released the song 4 and a half hours ago and you guys have it flying up the charts all over the place . Thank you

"What a day today was ! Can't believe the reaction. Crazy s**t !! Celebrating with a beer...

"Lying in bed looking at your comments about the song . It's really cool to see what you think n stuff . Thank you (sic)"

Among those who sent kind messages to Niall were his One Direction bandmates Liam Payne, Louis Tomlinson and Harry Styles.

Liam, 23, was the first to message Niall publicly, writing: "@NiallOfficial good luck boss give him all your support huge day for him proud of you boss," and Louis, 24, soon followed by tweeting: "Feeling super proud @NiallOfficial . You sound great ! Great to see you at your bday bash!!"

It wasn't long before Harry, 22, also messaged Niall, writing: "@NiallOfficial Ahhh, a lovely tune my friend. Congratulations. H."

Meanwhile, during an interview with Ryan Seacrest on KIIS FM, Niall admitted that One Direction are all concentrating on their solo projects but he insisted they haven't ruled out a reconciliation in the future.

He said: "I think for the foreseeable, we're all kind of doing our own thing. Everyone's enjoying doing their own thing. Harry did the movie [Christopher Nolan's 'Dunkirk'] and I'm doing this and Louis' got his things going on and so does Liam.

"But I still talk to them all the time, we still talk to each other. I saw Louis the other day. So for the foreseeable we're just doing our own thing but I definitely wouldn't rule it [a reunion] out."