Boyzone have announced plans to celebrate their 25th anniversary with new music and touring.

The quartet - Ronan Keating, Keith Duffy, Mikey Graham and Shane Lynch - will mark the milestone in 2018 by hitting the road to celebrate with their diehard fans.

They revealed the news on their official Instagram page by posting a moody photo along with the caption: "2018 will see Boyzone celebrate their 25th anniversary! That's something that Ronan, Keith, Mikey & Shane are incredibly proud of. Plans are being hatched for new music and lots of touring throughout the year.

"But next year still seems a long way off so in case you can't wait, the Boyz are hitting the road for some exclusive UK shows later this summer. Dates and ticketing details will be announced here soon... #boyzone2017."

Keating enthusiastically re-posted the photo with the caption: "Excited to announce !!!!!!!!"

The boyband were formed way back in 1993 when Irish music mogul Louis Walsh put the quintet consisting of Stephen Gately, Ronan Keating, Keith Duffy, Mikey Graham and Shane Lynch together after holding open auditions.

The group scored their first Irish chart hit in 1994 with the cover Working My Way Back to You, but it was the single Love Me for a Reason that brought them success across the pond in Britain, heading to number two in the charts.

Their debut album Said and Done followed, going straight to number one in Ireland and the UK and generating a series of hit singles for the Dubliners including Key to My Life and Father and Son.

Boyzone in their early years with the late Stephen Gately (centre)

Studio records A Different Beat and Where We Belong brought them further success in the '90s before a hiatus in the early Noughties. They reunited in 2008, and in 2009 played their Better Tour, their last with Stephen Gately, who died suddenly in October 2009 in Majorca.

Brother, the band's fourth studio album was released to critical and commercial success in 2010 with follow-up BZ20 released in 2013.

And yes, the fact that they're celebrating a quarter of a century in music makes us feel old too.