Liverpool are currently in the middle of the pre-season tour of the USA and the Reds come up against Premier League rivals in Michigan this evening in an International Champions Cup fixture.
And ahead of the meeting with their bitter rivals, Klopp attended a packed-out Liverpool fan event last night.
The Detroit Supporters Club were treated to a Q&A session with Kop legends Robbie Fowler and John-Arne Riise before musician Jamie Webster took to the mic.
And Webster was left visibly stunned when Klopp walked through the door mid-way through his performance much to the delight of the Anfield faithful in the room.
In honour of meeting Klopp, Webster played the now iconic ‘Allez, Allez, Allez’ chant which became a fan-favourite in the run to the Champions League final last term.
“It was being sung in Portugal (against Porto) on the concourse and we didn’t know how far it was going to go or what happened,” he said.
“Me and my friends said to each other: that song will spur us on in Europe this season, that song could be the new Ring Of Fire. That song did so many things for us.
“So I went home, and I put it on the guitar, give it a bit of life and has been the song of last season, hasn’t it?
“Jurgen, thanks very much, we owe you a lot.”
Klopp couldn’t resist joining in and sang along with the fans as Webster played the chant.
The Reds boss embraced Webster as he was given a standing ovation by fans after the song finished.