The Hoops fell behind to an early Jonny Hayes strike before Stuart Armstrong's leveller and Australian global Tom Rogic's dramatic stoppage time strike sealed only the fourth domestic treble in the club's 129-year history.
Jock Stein (1967-68), Tommy Burns (1995-96), Martin O'Neill (2001-02) and Neil Lennon (2013-14) all came agonisingly close to unbeaten league seasons with Celtic, each losing just one league game. You could never of sat down - any manager - coming in at the beginning of the season and wrote down what we would have done. We've learned from all the big games we've played this season. "But we've created an identity, and from that we can get better".
The conditions didn't seem to bother the fired up Aberdeen players as their high-tempo start paid off when Hayes fired them into the lead.
Carnlough man Rodgers had already secured the Championship and Scottish League Cup with Celtic this season.More news: World leaders react to horrific Manchester bombing
But they made their fans sweat at Hampden in the very last game of the season.
"This is the best feeling ever. I'm proud to play a part in it and proud to be a part of this club".
"I think that any time you lose a game in injury time is hard but it's compounded by it being a cup final", McInnes said. That is something for us to think about and enjoy when we get a bit of time to reflect on the season but for just now it is about looking to keep the momentum going.
Superintendent Mark Hargreaves, Match Commander for the event, said: "We have reviewed the security plans for the Cup Final along with our partners at the Scottish Football Association and it will be appropriately resourced to ensure people attend and leave the event safely".
And in a week which saw the Parkhead club celebrate with gusto the winning of the European Cup in Lisbon 50 years ago, excitement levels are rising ahead of what would be an historic achievement at Hampden Park today (kick-off: 16.00).