For the Glasgow side, the showpiece occasion presented an opportunity to claim an unprecedented quadruple treble, while their opponents from the Championship were hoping to cause a major upset.
No fans were in attendance inside the national stadium as the 2019-20 final was held seven months later than originally planned having been postponed in May due to the coronavirus pandemic.
The match kicked off at 2.15pm and you can follow all build-up, match action and reaction as it happened, right here in our live blog.
Celtic* 3-3 Hearts: William Hill Scottish Cup final
- Celtic win 2020 William Hill Scottish Cup to complete quadruple treble
- Hearts 3-3 Celtic
(Boyce 47, Kingsley 66, Ginnelly 111; Christie 19, Edouard 28 pen, Griffiths 105)
- Celtic win 4-3 on penalties
- FT - Hearts 2-2 Celtic; ET - Hearts 3-3 Celtic
And here’s what you said about Neil Lennon’s team selection - and Scott Brown’s inclusion
'Knew Lennon would bottle it', 'Asking for the sack' - Celtic fans react to Scott Brown starting Scottish Cup final
Neil Lennon’s decision to recall skipper Scott Brown for the Scottish Cup final against Hearts has provoked some heated debate among the Celtic support on Twitter.
It’s cup final day and I was a bit nervous this morning.
Soro had food poisoning last night and felt better this morning but Browny was always in our thoughts - we’ll need his experience out there
Pundits discuss Hearts striker, Liam Boyce
Shelley Kerr, BBC Scotland
His link-up play with Naimsith and Walker will be integral if Hearts are going to get a result.
Shelley Kerr, BBC Scotland
The important thing for Liam Boyce is he gets into those areas where he can score goals. We’ve seen clips where he’s wider and not impacting the game, he is at his best when he’s centre of the box because he’s a goalscorer
Five minutes to go
It’s the final countdown - how will the game go?
Here’s what our online team thought ahead of the game.
'Pressure is off for Hearts', 'Celtic are far superior' - Journalists' predictions for Celtic v Hearts cup final
Our online team make their predictions for Sunday’s Scottish Cup final between Celtic and Hearts at Hampden.
Teams are out
The teams are on the pitch and we’re moments away from kick-off to the much-delayed 2020 William Hill Scottish Cup final
Steven Naismith begins the Scottish Cup final 2020 - the 135th in the competition’s history.
2 - Chance
Christophe Berra flicks Andy Irving’s early free-kick towards goal - it’s going wide but Conor Hazard scrambles across his goal to grab the ball.
6 - Shape
Celtic have utilised the width of the Hampden pitch on a couple of occasions now when going forward to Craig Gordon’s goal - the Jambos are defending the west side of Hampden in the first half - but Hearts have retreated in tight when the cup holders have come at them in a noticeable tight 5-4-1 defensive pack which opens up once they go forward.
12 - Compsure
Bit of composure there from Christophe Berra to sell Callum McGregor a dummy and clear. If it didn’t come off the Celtic man was well in.