Robbie Williams in the FC Barcelona colours Hard Rock Rising 2015

Robbie Williams unfurled the FC Barcelona colours during a concert on Saturday at the Hard Rock Rising festival 2015 in Barcelona. The singer came on the stage with an enormous blaugrana flag. Minutes later, the British artist then posted the image on his Twitter account with the title: "Barcelona - amazing." 

The rock star is not the first to show his affection for the Club during a concert. Previously Lady Gaga and Macklemore had also recently revealed their blaugrana sympathies live in front of their fans.