A CELTIC supporting Greenock band are to realise their lifelong dream of playing in front of nearly 60,000 fans at Parkhead.

The Promise, featuring brothers Robert and Francis Harrison and James Murdoch, will perform their charity single — ‘Pride of a Celtic Nation’ — at the home of the Hoops next weekend.

They will take to the pitch at half-time in the club’s clash with Ross County on September 16 to play the song live in front of around 50,000 supporters.

The track was released in May, inspired by this year’s 50th anniversary of the Lisbon Lions lifting the European Cup and to commemorate last season’s unbeaten Scottish championship-winning team.

All proceeds from the charity single will be donated to the Celtic FC Foundation.

Greenock actor and musician Robert said: “It’s a dream come true to perform at Celtic Park.

“We’re overwhelmed.”

The band are all from Greenock and Robert co-wrote the track with brother Francis.

Also involved in the charity single is session player and backing vocalist Tony Cooper and Robert’s manager John Campbell, from Wemyss Bay, who had a hand in organising the once-in-a-lifetime Parkhead performance.

It will be a poignant moment next weekend, particularly for the brothers as it was their parents John and Sadie Harrison who bought them their first musical instruments after winning the Celtic Pools in 1972.

Robert said: “It feels like it was meant to be.”

Cheering them on will be Jamie Harrison, pictured, the great nephew of Robert and Francis.

The band’s performance will also be shown live on Celtic TV and they will be interviewed before the game as well.