In a tweet, Sony Music subsidiary The Script paid tribute to Sheehan.

She wrote: “We are deeply saddened by the tragic loss of Mark Sheehan – an extremely talented songwriter, guitarist and founding member of The Script, one of Ireland’s greatest bands.” Our thoughts are with his family, fellow band members, and fans at this time.”

former Love Island Host Laura Whitmore was among the celebrities who commented on Sheehan’s death on Instagram.

Commenting on The Script’s announcement post, Whitmore wrote: “Thinking of all of you at this time. Mark was one of the nicest, most talented guys you could ever meet.”

“We were so honored to work with Mark Sheehan on our film and TV show, and our sincere condolences to your family and friends, you are truly loved and will be missed by millions, my tight brother,” they wrote.

Fellow Irish playmaker Hosier shared his love for The Script on Instagram. Commenting on the post announcing Sheehan’s death, Hozier – real name Andrew Hozier Byrne – wrote: “So sad to hear this. Thinking of all of you and Mark’s family right now and sending love. My deepest condolences to all of you.”

Lead vocalist Danny O’Donoghue announced last year that Sheehan was taking a break from The Script’s US tour to spend time with his family.

“It’s his story to tell, but yeah, I think if I can paraphrase, his kids need a father and his wife needs a husband,” said the singer.

It’s been the engine of The Script for a long time, [I told him] that “If you want to spend time with your family, you are more than welcome, and I insist you go and do it.”

He added that the group was supportive and described them as a “band of brothers” who “stick together no matter what”.

Irish President Michael D Higgins issued a statement regarding Sheehan’s death.

The book states: “All those who knew Mark Sheehan, and the millions of others who enjoyed and appreciated his music, will be deeply shocked to hear of his untimely passing.

It was a mark of originality and distinction that Mark and his colleagues at The Script have sought to bring them to such worldwide success, including their first six albums in the UK and their third album in the US – a truly remarkable feat.

“It was a great honor and privilege to have the opportunity to host Mark and The Script when they performed at Áras an Uachtaráin in 2013 as part of my Glaoch – The President’s Call initiative, which celebrated Irish creativity, its spread and influence across the world.

Through their music, Mark and The Script have played a prominent role in continuing and enhancing this proud tradition of Irish musical success around the world.

“While Mark will be missed by many, it is of course his family who will face the greatest loss. Let me express my deepest condolences to Mark’s wife Rena, to his children Cameron, Avery and Lil, to his bandmates, and to all of his family and friends.”

The president concluded with an Irish phrase, “suaimhneas síoraí dá anam,” which means “eternal peace to his soul.”

Singer Ella Henderson posted a heartfelt tribute to Sheehan on Instagram after news of her death broke.

the previous x factor The contestant shared photos of herself with The Script and Sheehan along with the caption: “Mark, I am absolutely devastated. No one will ever be able to come close to the energy you had on stage and the hilarious banter you had behind the scenes.

I just want to take a moment for all of us to share our love and appreciation for Mark Sheehan. A true rock star who must be remembered for the love and light he brought to this earth! May you rest in peace. May your music live on forever.

She continued, “Sending so much love to all of Mark’s family and close friends and of course to my Irish brothers @thescriptofficial… I know the last video is the best quality… but I wanted to share with you all how this guy gave it his all and ran around that stage every night.” On tour. You own it Mark. I will always remember you that way. All my love… lil your northern sister xxx Ella xxxxxx.”

former Love Island Host Laura Whitmore was among the celebrities who commented on Sheehan’s death on Instagram.

Commenting on The Script’s announcement post, Whitmore wrote: “Thinking of all of you at this time. Mark was one of the nicest, most talented guys you could ever meet.”

Fellow Irish playmaker Hosier shared his love for The Script on Instagram. Commenting on the post announcing Sheehan’s death, Hozier – real name Andrew Hozier Byrne – wrote: “So sad to hear this. Thinking of all of you and Mark’s family right now and sending love. My deepest condolences to all of you.”

All we know so far is that Sheehan passed away in hospital after a “brief illness.” He was 46 years old.

No further information was provided and the band requested “privacy at this tragic time”.