The Hoops support is on cloud nine after their 2-1 victory over the Dons at Hampden to seal an unbeaten domestic treble.
And some supporters decided to take their celebrations to the training base of their rivals after the full-time whistle.
A video has been shared on Twitter which shows a car full of fans driving into Rangers’ Auchenhowie training ground while blaring a Celtic tune over the speakers:
— 6inaRowHereWeGo (@6inaRowHereWeGo) May 27, 2017
As you can imagine, the video is going down well with Celtic fans, but we doubt Rangers supporters are keen on it.
It’s been an eventful week at Celtic, with the club celebrating the Lisbon Lions’ 50th anniversary before yesterday’s victory at the national stadium.
Today there’s a charity match at Parkhead, with a host of former players joining Henrik Larsson and Lubo Moravcik’s teams.