Vincent Kompany’s testimonial on Wednesday evening was filled with Premier League icons.

The Man City Legends side included current stars Sergio Aguero and David Silva.

And they faced a Premier League All-Stars side that featured Robin van Persie, Rafael van der Vaart, Ryan Giggs and Paul Scholes.

The match was held to recognise Kompany’s fantastic Manchester City career, which included four Premier League titles and two FA Cups across 265 appearances.

Unfortunately an injury meant the Belgian couldn’t play but it was still an enjoyable occasion.

Yet Liverpool fans watching on were left bemused when they heard what was being sung by the crowd inside the Etihad Stadium during the match.

The Steven Gerrard song broke out, and Liverpool supporters are not quite sure why.

First off, this was Vincent Kompany’s testimonial. It wasn’t Man City vs Liverpool and Gerrard wasn’t present.

And Man City fans deciding to sing the Gerrard song has sparked a reaction from Liverpool fans.

If you’re not sure how it goes, here are the lyrics:

“Steve Gerrard Gerrard,
He slipped on his f*****g ass,
He gave it to Demba Ba,
Steve Gerrard Gerrard.”

The song is a reference to Gerrard’s slip at a pivotal moment in the title race against Chelsea back in 2014.

Gerrard’s fall saw Liverpool lose 2-0 to the Blues, ultimately handing the title to Man City.

The former Liverpool captain has never lived it down but it seems very out of place at Kompany’s testimonial.

Five years on and the slip still haunts Gerrard, who never won the Premier League title during his career.

"This wound has been open since my experience. I'm not sure it'll close because I can't change that experience," Gerrard said in March, per Sky Sports.

Unfortunately for Gerrard, it's led to a very, very popular song.