However, the bandmembers Stephen Garrigan, Vinny May Jason Boland, and Mark Prendergast are not sure if the song would ever be released, reported Daily Mirror.
"Harry Styles came to two of our shows and he's a big fan and we ended up going to the studio and writing a song together. He's a really good lad," Prendergrast said.
"Very funny and a very good writer and singer. It was an unrequited love song but we're not sure what we're doing with it yet, but it's there," he added.
"We did a show in LA and we're in this big old theatre and it was a mad show. Nicole Scherzinger came along. We heard she might be coming and we were like, 'No, she's not coming'. Then I could see her from the stage and I was like, 'Jesus, there she is," he said.