LIVERPOOL icon Jamie Carragher led the emotional tributes as the Reds dumped Barcelona out of Europe.
The Catalans were cruising as they took a three-goal advantage to Anfield.
But Divock Origi scored either side of Georginio Wijnaldum's quickfire double to seal an incredible victory.
Carragher claimed it was the greatest night ever at Anfield.
While NBA star Kobe Bryant tweeted: "AMAZING NIGHT FOR THE REDS. WOW #YNWA".
Arsenal fan Piers Morgan added: "INCREDIBLE!!!!!
"Congratulations Liverpool, greatest comeback in the history of football.
"3-0 down to the best team in the world, and you destroyed them 4-0 in the 2nd Leg.
"Astonishing. And wonderful."
Jurgen Klopp gives emotional press conference after Liverpool beat Barcelona in the Champions LeagueThe club themselves beamed: "WHAT A SPECIAL NIGHT!!! WE'RE GOING TO THE CHAMPIONS LEAGUE FINAL!!"
Liverpool faced a seemingly impossible task after the first leg saw Lionel Messi score twice in a masterclass.
Former star Luis Suarez was also on the scoresheet and took plenty of stick from the terraces tonight.
Liverpool fans celebrate after historic Champions League semi-final win over BarcelonaBut the jeers turned to cheers as Origi and Wijnaldum took their chances to stun hapless Barca.
Tottenham take on Ajax tomorrow looking for their own comeback - albeit from not quite as formidable a position.
Spurs lost 1-0 at White Hart Lane but will hope the returning Son Heung-min can fire them to Madrid.