Spain celebrate during La Roja's open-top bus parade through the streets of Madrid on Monday. Photo: AFP

New Fifa World Cup champions Spain enjoyed a vibrant night of celebrations after an open-top bus parade through the streets of Madrid on Monday in front of a jubilant crowd of an estimated two million people.

The players enjoyed drinks on their procession under a blazing sun along the main arteries in the city centre, where a sea of fans in red and yellow were waiting, before arriving at Cibeles Square where they took to the stage and partied into the night.

The squad and Luis de la Fuente were introduced one-by-one to the fans, each with their own choice of music that they sang along to, while wearing We are champions shirts. The coach hailed his players as the "best in the world" and telling fans not to forget that "together we are stronger."

The players and staff posed for a photo before Rodri raised the trophy again, just as he had done on Sunday night after Spain beat Argentina 1-0 in extra-time in New Jersey to be crowned champions.