AS the half-time whistle rang out at Hampden on Sunday afternoon during the Premier Sports Cup final, both sets of fans were in full voice as they backed their teams - and the party atmosphere appears to have rubbed off on Rangers legend Ally McCoist.

The Ibrox legend was at the national stadium on punditry duty with Premier Sports, and it's fair to say the popular co-commentator was enjoying himself as he rocked out during the break.

And when Metallica's hit single Enter Sandman came on the PA system at Hampden, McCoist couldn't help rocking out.

McCoist's co-presenter Emma Dodds uploaded a video to Twitter showing the Rangers great singing and dancing along to the rock anthem, with the caption : "The half-time entertainment was top notch today, bloody love this guy! #neveradullmoment".

In the clip, McCoist can be seen singing towards the camera as he mimes out the lyrics.

He pointed to his eyes during the line 'Sleep with one eye open', before pretending to clutch his pillow in horror for the next line, 'clutching your pillow tight'.

Former Celtic striker Chris Sutton can also be spotted in the footage - athough he doesn't look too impressed with his pal's performance.