JOHN HARTSON has lifted the lid on a "special" night at the Hyrdo with his old Celtic pals on Monday.

The Welshman took part in a large Q&A session in front of 10,000 fans in the Glasgow arena. 

He was joined by fellow former heroes Henrik Larsson, Chris Sutton, Stiliyan Petrov and Martin O'Neill. 

The group, who were also joined by the likes of Jackie McNamara and Alan Thompson, shared stories from their times at Celtic Park.

Speaking on the Go Radio Football Show, Hartson emotionally described how much the night meant to him.

Hartson said: "It was emotional, it was really special. 

“Stan Petrov was on there as well, obviously Stan’s had his health problems, it was good to see him back to full health.

“Martin (O’Neill) was in great form… but for the fans that were there, I don’t know if they want to call in and let us know what type of night they felt it was.

“But it really was an amazing night last night, I thoroughly enjoyed it."