Team USA stands to win the country's 1,000 medal while competing in Rio this summer

Team America has arrived.

Led by flag-bearer Michael Phelps – whose Ralph Lauren-designed uniform was quite literally illuminated with the colors of the American flag – the team made its way into Maracanã stadium to assemble with the rest of the competing athletes.

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As they walked around the stadium, the American athletes joyfully hugged each other and snapped selfies.

Sprinter Allyson Felix danced to the music and wore a huge smile as she walked with her teammates.

Many of the athletes used their walk as an opportunity for selfies and team photos, like Serena Williams, who posed inside the stadium with fellow tennis stars Madison Keys, Sloane Stephens and Bethanie Mattek-Sands.

NBA star Harrison Barnes, who cheesed with the stadium crowd, called the moment, a “dream come true.”

Other stars who made their way around the track included Carmelo Anthony, Cleveland Cavaliers star Kyrie Irving, PGA Tour stars Rickie Fowler and Bubba Watson and Venus Williams.

The U.S. contingent is made up of 554 athletes, more than any other nation – and the biggest team ever for the United States.

Related Video: Michael Phelps is Set to Carry the U.S. Flag For the Rio Olympics Opening Ceremony

Notably absent? Simone Biles and the rest of the U.S. women’s gymnastics team. The women decided to sit out the opener ahead of their first day of competition, Sunday. The women’s soccer team also watched the ceremony from home, resting up for their Saturday match against France.