Modern-day footballers may be on their best behaviour over Christmas, but it wasn't so long ago that they used to let their hair down a little over the festive period.
That was definitely the case during ITV's Big Match Christmas special from 1976, which featured guest host Elton John, Liverpool's Kevin Keegan and Southampton's Mick Channon.
The three certainly got into the festive spirit, and end with a good old fashion sing-a-long...
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