The 2018 FIFA World Cup's most passionate fans - Sometimes the best part of the FIFA World Cup is not the game itself, but the passionate fans who show up to support their team. From silly selfies to elaborate body paint and hats, the following fans cannot contain their excitement for the game.

© Reuters

Selfie time - On June 13, a Brazil fan takes a silly selfie before the start of the 2018 World Cup.

© Reuters

Peru fan - A Peru supporter attends a gathering for the national soccer team on June 15.

© Reuters

Spain or Portugal? - This fan prays for a goal at the Spain vs Portugal game on June 15. But which team is he rooting for?

© Reuters

Viking energy - A fan cheers during the Argentina vs. Iceland game on June 16.

© Reuters

Candid camera - An England fan concentrating hard as he takes a picture during the Tunisia vs England match on June 18.

© Reuters

Smile big - A Russia fan cheeses for the camera as she supports her team at a gathering on the eve of the World Cup. 

© Reuters

Super stylish - A Mexico fan looks stylish in a giant sombrero and shades as he walks through the city before the start of the World Cup.

© Reuters

Double vision - At the Portugal vs. Spain game on June 15, a fan cheers on his team.

© Reuters

Soccer balls - A Portugal fan with his face elaborately painted watches the Portugal vs. Spain game on June 15.

© Reuters

Say cheese - This fan strikes a pose for the camera before the June 14 Russia vs. Saudi Arabia match.

© Reuters

Team colors - The Russia vs. Saudi Arabia game saw many fans showing off their team's colors—this one was no exception.

© Reuters

Russia fans - Two fans dressed for the occasion pose before the Russia vs. Saudi Arabia match on June 14.

© Reuters

Go team! - A Russia fan covered in body paint energetically cheers on his team at the Russia vs. Saudi Arabia game.

© Reuters

It's all in the details - One fan kisses another's head, which is painted like the logo of the world cup.

© Reuters

Full-body painting - An excited fan gets pumped for the Russia vs. Saudi Arabia match on June 14.

© Reuters

Shady day - The Egypt vs. Uruguay game on June 15 brought together fans from all over the world, including this one wearing an Egyptian headdress.

© Reuters

Dressed head-to-toe - Fans pose excitedly at the Russia vs. Saudi Arabia game on June 14.

© Reuters

Russia fan - A Russia fan at the Russia vs. Saudi Arabia game waves a flag to cheer on her team.

© Reuters

Double head - A fan wears a hat with the face of one of the players at the Russia vs. Saudi Arabia match.

© Reuters

Silly hat - A Russia fan holds up a flag and poses in a funky hat at the Russia vs. Saudi Arabia game on June 14.

© Reuters

Mexico supporters - Mexico fans gather in support of their team on the first day of the 2018 FIFA World Cup.

© Reuters

Fans in all sizes - An excited boy waits eagerly for the start of the Russia vs. Saudi Arabia game with his cheeks painted in honor of his team.

© Reuters

Makeshift hat - A Russia fan at the Russia vs. Saudi Arabia match wears a soccer ball on his head as he watches the game.

© Reuters

Bird of prey - This fan's headpiece could not go unnoticed at the Russia vs. Saudi Arabia match on June 14.

© Reuters

Flag face - Russia fans cheer with their faces completely covered in their team's colors.

© Reuters

Russia fans - Two fans pose solemnly before the Russia vs. Saudi Arabia match.

© Reuters

Ready for victory - A Russia fan joins many of his fellow comrades with his face exhibiting the country's flag before the Russia vs. Saudi Arabia game.

© Reuters

Russian prince - A little boy rests in between all of the cheering and high emotion at the Russia vs. Saudi Arabia match.

© Reuters

Goal!!!!! - England fans erupt in joy as their team scores a goal during the Tunisia vs England game on June 18.

© Reuters