Manchester United received the Premiership trophy for the eighth time in 11 seasons after ending their campaign with a victory at Everton.
Captain Roy Keane and boss Sir Alex Ferguson led the celebrations at Goodison Park after United's victory.
United's win meant bitter disappointment for Everton, who missed out on a Uefa Cup place to Blackburn Rovers on the final day of the season.
Ruud van Nistelrooy scored the winner with his 25th goal of the season from the penalty spot at Goodison, winning the Golden Boot as the Premiership's leading scorer.
Sir Alex Ferguson's side clinched the championship when Arsenal lost 3-2 against Leeds United at Highbury last Sunday - but had to wait until after the final game of the season to receive the trophy.
Van Nistelrooy said: "It's a fantastic day. Manchester United showed great faith in me when they bought me.
"Now we will have a holiday and come back refreshed next year."
Everton initially objected to United receiving the Premiership trophy at Goodison Park because they feared there were "safety issues."
But the potential row was resolved and United were able to celebrate with 3,000 fans who travelled to Merseyside, with Everton fans also applauding the champions.
Manchester United defender Rio Ferdinand said: "We had a big, big hill to climb and we managed to do it.
"Everyone was very hungry, particular players at this club who don't normally go a year without winning a trophy.
"We were all determined to put that right. There was a time when we wondered whether it might be slipping away, but everyone showed tremendous will to win and spirit."
The win at Everton and the celebration was a fitting climax to a brilliant end to the season for United, who clawed back Arsenal's eight point lead with an undefeated run since the turn of the year that took them to the title.