A victory parade has taken place on the streets of Manchester to celebrate historic wins for both City's men's and women's teams.
Former City striker Paul Dickov joined Manchester City in 1996 and played for the club when it was relegated to the third tier - but said even when the club went through its lowest ebb the fans always backed them.
He said: "To see where the club is now is amazing, because you know we weren't very good back then as the song goes to put it politely, but to see the trophies we are winning.
"I'm delighted for the fans, because back then 20 years ago, we had dropped to the lowest steps in the club's history and they backed us through thick and thin.
"It seemed at one point, the worse we got as a team the better the fans got, so to see them all celebrating, another bit of history is amazing."
Thousands of fans lined the streets as Manchester City celebrated their stunning domestic treble with an open-top bus parade.
City supporters turned out in huge numbers as the team travelled through Manchester's city centre from the town hall towards the cathedral along Deansgate.
Kevin Parker, Manchester City FC Official Supporters Club general secretary, said each trophy "gives you a fantastic buzz" and was looking forward to what the future held for Pep Guardiola’s team.
"Every season seems to be a little bit different in some way, different venue or I don't mean this in an arrogant way, different trophies, but in your heart it still feels something special," he added.
"And when I see the look on my fellow supporters' faces and their anticipation of what's going to happen here in a very short period of time, it's fantastic, it really is."
Players were presented on stage at the end of the parade route, at Manchester Cathedral.