Lionel Messi scored two as Barcelona got their season off to the best possible start, putting seven past Levante.
World Player of the Year Lionel Messi and Spain striker Pedro both scored twice, while new 57 million euro signing Neymar started on the bench and came on as a 63rd-minute substitute with the game already resolved.
It was the biggest opening-day Liga victory since 1955, when Atletico Madrid beat Hercules 9-0.
Barca made a whirlwind start, scoring four times in the opening 26 minutes as the team responded to Argentine coach Tata Martino's calls for greater intensity in their pressing game and a more direct approach.
The outstanding Cesc Fabregas squared for Alexis Sanchez to tap in the opener in the third minute, and Messi exchanged passes with Pedro to stroke in the second.
Dani Alves struck the third after another slick passing move on the edge of the area, and Pedro, who started wide on the left of the attack keeping Neymar on the bench, bagged the fourth.
Adriano was felled for a penalty in the 42nd which Messi fired home, and Fabregas set up Xavi with an extravagant looping pass over the defence for the sixth, just before the break.
A limp display from the cash-strapped visitors, under new coach Joaquin Caparros, could only look to a string of saves from goalkeeper Keylor Navas as any sort of positive.
Brazil forward Neymar was given a rousing reception when he came on for his competitive debut and showed a few nice touches but it was Pedro who notched the seventh after a mix up in the Levante defence in the 73rd.