FC BARCELONA has become first sports club to be able to boast 100 million followers on social networks.
The club is organising a series of special events to celebrate the achievement, kicking off at the Barça v Rayo game.
Fans elsewhere will be able to take part on the different social networks.
The Club has created the hashtag #FCB100M for fans to share their Barça feelings by tagging their photos on social networks. The best pictures will be used on a special website that Barça has prepared.
The players from the football and other sports teams have also been photographed with the image being used to identify the campaign (#FCB100M).
The army of fans is made up of 30 official FCB accounts on Facebook, Twitter, Instagram, Google+, Tencent Weibo and YouTube.
The players have also appeared in a video that FC Barcelona has recorded to commemorate the achievement.