Neil Lennon spoke about a Utopian display after Celtic romped through to the fifth round of the William Hill Scottish Cup with a 7-0 humiliation of Hearts at Tynecastle, handing the Gorgie side their biggest defeat in 40 years.
The cup holders were knocked out of Europe with a 3-0 Champions League defeat to AC Milan at Parkhead on Tuesday night and they took their frustrations out on the Jambos to lead 5-0 at half-time with a Kris Commons double and goals from skipper Scott Brown, Joe Ledley and Mikael Lustig.
Commons completed his hat-trick from the spot in the 58th minute with Brown grabbing his second - and the Hoops' seventh - in the 74th minute with a volley from the edge of the box.
The Celtic boss said: "If you are looking for Utopia then that first half was probably it.
"All five goals were breathtaking and the performance itself was the best I've seen certainly in my time as manager and that's what we have been looking for, for a few months now.
"And off the back of what was a disappointing exit in the Champions League the players have shown what a good team they are.
"We showed remarkable character today and I know people will say it is only Hearts, a young team, but I thought we were amazing, absolutely amazing."
"With everything that has gone on in Glasgow in the last couple of days, there was a lot of people in the crowd hurting"
Before the game there was a well-observed minute's silence for those who died as a result of the helicopter crash in Glasgow on Friday night with both teams wearing black armbands.
Commons explained the tragedy was the reason why he kicked the ball into the Hoops fans after scoring from the spot and why he threw his jersey into the supporters after the final whistle.
He said: "With everything that has gone on in Glasgow in the last couple of days, there was a lot of people in the crowd hurting.
"I was just trying to give them something to cheer them up."
Asked if he would fancy playing traditional rivals Rangers in the next round, the draw for which takes place on Monday, Commons replied: "I would fancy playing Rangers in any round.
"They are fantastic games, not just for players but fans and media as well.
"In an ideal world it would be nice if we both get to the final but any game you would take.
"But I think the most important thing is to concentrate to retain the trophy rather than think about what teams we are going to play."