Celtic secured a 52nd Scottish league title on Wednesday despite being held 1-1 by Dundee United.
Ange Postecoglou's men only needed a point to win a 10th league title in 11 years as they also booked their place in next season's Champions League group stage.
The Hoops realistically already had the title sewn up as they began the evening with a six-point lead over Rangers and a 20-goal superior goal difference with two games remaining.
Postecoglou was plucked from Yokohama Marinos when Eddie Howe turned his back on Celtic's offer a year ago.
The Australian has overseen a remarkable turnaround between the Glasgow giants, as Celtic finished a distant 25 points behind Rangers last season.
After losing three of their first six games, Celtic are now unbeaten in 31 in the league.
But they dropped points for just the third time in 2022 at Tannadice.
Georgios Giakoumakis' towering header early in the second half put the visitors on course for another three points.
But on-loan Manchester United midfielder Dylan Levitt's sensational strike earned United a crucial point in their battle for European football.
Daizen Maeda missed a glorious chance to win the title in style in stoppage time, but a draw was enough to spark celebrations among the travelling support.