The Argentine superstar proved the difference for Barcelona, breaking the resolve of Bayern Munich.
Cristiano Ronaldo netted his 76th away at Juventus on Tuesday night, and whilst it was a crucial away goal by the Portuguese star, Real Madrid still slipped to a 2-1 defeat in Turin.
As attention turned to the Camp Nou, all eyes were locked on Lionel Messi, who his former coach and now Bayern Munich boss, Pep Guardiola, had labelled as 'unstoppable' during the build up to the encounter.
The Barcelona maestro certainly tried his best, utilising his full repertoire of tricks during a tightly contested first-half, but was unable to find the breakthrough. By hook or by crook, the 'unstoppable' was indeed being stopped.
Tense, balanced on a knife's edge, even without goals, this was a scintillating tie between two giants of the European game.
Then it came...
In the 77th minute, Dani Alves made the most of a mistake from Bayern left-back Juan Bernat, picked out a pinpoint pass for Lionel Messi and from just outside the area, he drilled in a finish beyond the reach of Manuel Neuer.
Barcelona finally had their breakthrough, but it didn't end there. Just three minutes later and in the 80th, the true genius of Messi was highlighted with his second goal.
Fed the opportunity by Ivan Rakitic, the Argentine superstar weaved his way into the Bayern area, the ball seemingly glued to his feet, left his marker Jerome Boateng on his backside, then dispatched a fantastic chipped finish over Manuel Neuer, and into the back of his net.
Sublime from Messi and his 77th European goal, firing him one ahead of Cristiano Ronaldo. Demonstrating his array of talents even further though, the maestro wasn't yet done.
Deep into stoppage time, the magical scorer turned creator, sending Neymar through to score the third for Barcelona.
Few can argue with the qualities of Messi, although the debate will inevitably continue, as to whether he or Cristiano is the best player in the world. But the Argentine wizard must surely claim the upper hand, after his display against the Bavarians.
Barcelona now with a firm foot into the Champions League final, thanks to the efforts of Messi, which ultimately, is what counts most. Combining those thrilling displays, with results.