Already trailing 3-1 from the first-leg and having failed to contain Luis Suarez and Neymar, it was always going to be an uphill struggle for PSG, as they headed to the Camp Nou.
On Wednesday night, the second-leg would prove just as difficult for PSG, as Barcelona put on a superb team display, crowned by the goals and performance of Neymar.
The Brazilian was in majestic form, tormenting rival defenders throughout the game, and demonstrating his predatory instincts with a brace of expertly taken goals.
As Barcelona secured a comfortable 5-1 aggregate victory, three of those goals over both legs, came from Neymar, who the PSG defence certainly won't want to face again in a hurry.
With fans, pundits and media outlets alike, marvelling at the stellar showing from the 23-year-old, here's a selection of some of the best reactions on Twitter...
Who cares what Neymar cost*, when he can do things like that? * Well, apart from the Spanish tax man— AS English (@English_AS) April 21, 2015
NEYMAR IS ON FIRE— fizzah فزه (@fizzahhh) April 21, 2015
Imagine thinking Neymar is overrated and Hazard is better than him.— Jojo Culé (@jperkovic93) April 21, 2015
Hey Eden Hazard, watch Neymar. This is how you destroy PSG. #futureballondor— Left Foot (@messileftfoot) April 21, 2015
How good is that? Iniesta at his sublime best. Neymar exquisite in his finishing.— Gary Lineker (@GaryLineker) April 21, 2015
Great result for Barcelona. Neymar played great and now it's on to the Champions League semifinals! #UCL— Mr. Mike (@MrMike75) April 21, 2015
Gateshead. CL on TV. Ma. Can Ye name us any Barcelona players, oor Billy! Billy: Neymar Ma: Ah gan on, Ye must kna a couple...— Billy Banter (@bernieforkin) April 21, 2015