The Blues were thumped 6-0 by Pep Guardiola’s side yesterday.
This saw Maurizio Sarri’s side drop out of the top four by one point.
Chelsea had conceded four goals in 25 minutes as fans of the London side were left extremely disappointed.
And footage has emerged of how the home side took a cheeky dig at the club.
In the clip, it is full time at the Etihad Stadium.
There are very few Chelsea fans left in the stadium, with most of them leaving early.
But as a leaving gift, City play One Step Beyond by Madness, a regular song at Stamford Bridge.
And the fans chant at the Blues supporters, raising their hands in the air.
This footage was quickly shared on Twitter, where it has been viewed more than 350,000 times.
And the City faithful absolutely loved this cheeky dig at the opposition.
“Exceptional trolling,” one supporter said.
Man City fan
Another commented: “Great s***housery.”
While a third sympathised with the travelling Chelsea fans.
“Imagine having to endure that,” they said.
Reports have since emerged that the song was quickly turned off the PA system.
And City have now apologised to Chelsea, according to the Evening Standard.
The Blues now have a big decision to make about Sarri in the next 48 hours, Manchester United legend Gary Neville said.