The Hoops striker was a late second-half substitute with the tie over, but that didn’t stop him savouring in the celebrations at the full-time whistle.
Brendan Rodgers’ men dominated their rivals, with goals from Tom Rogic, Callum McGregor, Moussa Dembele and Olivier Ntcham reward for a fine performance.
Griffiths may have been disappointed not to start given his return to goalscoring form last weekend against Hamilton.
But that didn’t show at Hampden, with Griffiths doing his part before celebrating with his teammates after the full-time whistle.
As they walked around the Celtic support, Griffiths picked up a scarf thrown from the crowd before being pictured tying it around a post:
With the win, Celtic’s bid for a historic back-to-back treble continues – with Motherwell standing in their way after they beat Aberdeen in the other semi-final yesterday.