Almost half a million fans turned out to celebrate FC Barcelona's 22nd La Liga trophy win on Monday.
The team, joined by manager Tito Vilanova and his coaching staff, set off in an open-topped bus from Barcelona's World Trade Center to parade the trophy in front of supporters who packed the city's streets.
Saturday's 1-1 draw between local rivals RCD Espanyol and arch-rivals Real Madrid had mathematically guaranteed Barcelona the title even before their victory on Sunday over Atletico Madrid.
Despite the disappointment of a semi-final exit from the Champions League earlier in the month, Barcelona's supporters, known as els culés, were in the mood to party.
There was music, confetti and dancing as fans cheered their heroes along the bus route.
Leon Messi, Ballon d'Or winner and current head of the pichichi (leading scorer) table with 46 goals, received the biggest cheers of the day, closely followed by manager Tito Vilanova who has overcome cancer this season.
The players, sporting commemorative t-shirts, danced, drank cava and acknowledged the applause of the crowds.
Several players, including Cesc Fabregas posted live pictures of the celebrations to their Twitter accounts.
The party will continue next week in the Nou Camp after Barça's home game against Valladolid.