Andres Iniesta’s injury-time strike stunned Chelsea and sent 10-man Barca into the Champions League final.
Chelsea took an early lead through Michael Essien’s thunderous volley.
Barca’s hopes took a blow when Eric Abidal was sent off but Iniesta arrowed a sensational shot into the top corner to send his side through on away goals.
Chelsea, who had four penalty appeals turned down, surrounded the referee at the final whistle as their frustrations boiled over.