RIO DE JANEIRO, BRAZIL - AUGUST 05: Fireworks explode over the stadium during the Opening Ceremony of the Rio 2016 Olympic Games at Maracana Stadium on August 5, 2016 in Rio de Janeiro, Brazil. (Photo by Patrick Smith/Getty Images)

RIO DE JANEIRO, BRAZIL - AUGUST 05: Dancers perform during the Tropical Nation segment of Opening Ceremony of the Rio 2016 Olympic Games at Maracana Stadium on August 5, 2016 in Rio de Janeiro, Brazil. (Photo by Richard Heathcote/Getty Images)

RIO DE JANEIRO, BRAZIL - AUGUST 05: Performers take part in the Opening Ceremony of the Rio 2016 Olympic Games at Maracana Stadium on August 5, 2016 in Rio de Janeiro, Brazil. (Photo by David Rogers/Getty Images)

Dancers perform during the opening ceremony of the Rio 2016 Olympic Games at the Maracana stadium in Rio de Janeiro on August 5, 2016. / AFP PHOTO / Leon NEAL

RIO DE JANEIRO, BRAZIL - AUGUST 05: Dancers perform during the Tropical Nation segment of the Opening Ceremony of the Rio 2016 Olympic Games at Maracana Stadium on August 5, 2016 in Rio de Janeiro, Brazil. (Photo by Clive Mason/Getty Images)

RIO DE JANEIRO, BRAZIL - AUGUST 05: Members of the South Africa team take part in the Opening Ceremony of the Rio 2016 Olympic Games at Maracana Stadium on August 5, 2016 in Rio de Janeiro, Brazil. (Photo by Cameron Spencer/Getty Images)

RIO DE JANEIRO, BRAZIL - AUGUST 05: Fireworks explode during the Opening Ceremony of the Rio 2016 Olympic Games at Maracana Stadium on August 5, 2016 in Rio de Janeiro, Brazil. (Photo by Clive Brunskill/Getty Images)

TOPSHOT - People watch fireworks exploding over the Maracana stadium, from the favela Mangueira, during the opening ceremony of the Rio 2016 Olympic Games in Rio de Janeiro on August 5, 2016. / AFP PHOTO / Carl DE SOUZA

A performer smiles during the opening ceremony of the Rio 2016 Olympic Games at the Maracana stadium in Rio de Janeiro on August 5, 2016. / AFP PHOTO / Leon NEAL

Anna Meares carries the flag of Australia during the opening ceremony for the 2016 Summer Olympics in Rio de Janeiro, Brazil, Friday, Aug. 5, 2016. (AP Photo/David J. Phillip)

Australian athletes take a selfie as they march during the opening ceremony for the 2016 Summer Olympics in Rio de Janeiro, Brazil, Friday, Aug. 5, 2016. (AP Photo/Matt Slocum)

Australian athletes use their smartphones as they march in during the opening ceremony for the 2016 Summer Olympics in Rio de Janeiro, Brazil, Friday, Aug. 5, 2016. (AP Photo/Matt Slocum)

Australian athletes take selfie as they march in during the opening ceremony for the 2016 Summer Olympics in Rio de Janeiro, Brazil, Friday, Aug. 5, 2016. (AP Photo/Matt Slocum)

An Australian athlete holds up a sign as the Australia team arrive during the opening ceremony for the 2016 Summer Olympics in Rio de Janeiro, Brazil, Friday, Aug. 5, 2016. (AP Photo/David J. Phillip)

Fireworks explode over Maracana Stadium during the opening ceremony at the 2016 Summer Olympics in Rio de Janeiro, Brazil, Friday, Aug. 5, 2016. (AP Photo/Felipe Dana)

Model Gisele Bundchen walks on stage as 'The Girl from Ipanema' during the opening ceremony for the 2016 Summer Olympics in Rio de Janeiro, Brazil, Friday, Aug. 5, 2016. (AP Photo/David Goldman)

RIO DE JANEIRO, BRAZIL - AUGUST 05: Performers dance during the Opening Ceremony of the Rio 2016 Olympic Games at Maracana Stadium on August 5, 2016 in Rio de Janeiro, Brazil. (Photo by Jamie Squire/Getty Images)

RIO DE JANEIRO, BRAZIL - AUGUST 05: Performers dance during the Opening Ceremony of the Rio 2016 Olympic Games at Maracana Stadium on August 5, 2016 in Rio de Janeiro, Brazil. (Photo by Christian Petersen/Getty Images)

RIO DE JANEIRO, BRAZIL - AUGUST 05: The Brazil flag is raised during a performance at the Opening Ceremony of the Rio 2016 Olympic Games at Maracana Stadium on August 5, 2016 in Rio de Janeiro, Brazil. (Photo by Elsa/Getty Images)

Dancers perform during the opening ceremony for the 2016 Summer Olympics in Rio de Janeiro, Brazil, Friday, Aug. 5, 2016. (AP Photo/Jae C. Hong)

RIO DE JANEIRO, BRAZIL - AUGUST 05: Spectators enjoy during the Opening Ceremony of the Rio 2016 Olympic Games at Maracana Stadium on August 5, 2016 in Rio de Janeiro, Brazil. (Photo by Ezra Shaw/Getty Images)

RIO DE JANEIRO, BRAZIL - AUGUST 05: Dancers perform during the Geometrization segment of the Opening Ceremony of the Rio 2016 Olympic Games at Maracana Stadium on August 5, 2016 in Rio de Janeiro, Brazil. (Photo by Jamie Squire/Getty Images)

RIO DE JANEIRO, BRAZIL - AUGUST 05: Dancers perform during the Favela Voices segement of Opening Ceremony of the Rio 2016 Olympic Games at Maracana Stadium on August 5, 2016 in Rio de Janeiro, Brazil. (Photo by Ian Walton/Getty Images)

RIO DE JANEIRO, BRAZIL - AUGUST 05: Performers dance during the Opening Ceremony of the Rio 2016 Olympic Games at Maracana Stadium on August 5, 2016 in Rio de Janeiro, Brazil. (Photo by Lars Baron/Getty Images)

RIO DE JANEIRO, BRAZIL - AUGUST 05: Dancers perform Pindorama: The Birth of Life during the Opening Ceremony of the Rio 2016 Olympic Games at Maracana Stadium on August 5, 2016 in Rio de Janeiro, Brazil. (Photo by Julian Finney/Getty Images)

RIO DE JANEIRO, BRAZIL - AUGUST 05: Dancers perform Pindorama: The Birth of Life during the Opening Ceremony of the Rio 2016 Olympic Games at Maracana Stadium on August 5, 2016 in Rio de Janeiro, Brazil. (Photo by Christian Petersen/Getty Images)

Rio Olympics 2016. The Opening Ceremony at the Macarana Stadium in Rio De Janerio. Picture: Alex Coppel.

Lights are projected on the floor of Maracana Stadium during the opening ceremony at the 2016 Summer Olympics in Rio de Janeiro, Brazil, Friday, Aug. 5, 2016. (AP Photo/Tim Donnelly)

RIO DE JANEIRO, BRAZIL - AUGUST 05: Performers dance during the Opening Ceremony of the Rio 2016 Olympic Games at Maracana Stadium on August 5, 2016 in Rio de Janeiro, Brazil. (Photo by Lars Baron/Getty Images)

This picture shows an overview during the opening ceremony of the Rio 2016 Olympic Games at the Maracana stadium in Rio de Janeiro on August 5, 2016. / AFP PHOTO / François-Xavier MARIT

RIO DE JANEIRO, BRAZIL - AUGUST 05: A general view during the Opening Ceremony of the Rio 2016 Olympic Games at Maracana Stadium on August 5, 2016 in Rio de Janeiro, Brazil. (Photo by Clive Brunskill/Getty Images)

Artists perform during the opening ceremony for the 2016 Summer Olympics in Rio de Janeiro, Brazil, Friday, Aug. 5, 2016. (Richard Heathcote/Pool Photo via AP)

Artists perform during the opening ceremony of the Rio 2016 Olympic Games at the Maracana stadium in Rio de Janeiro on August 5, 2016. / AFP PHOTO / CHRISTOPHE SIMON

In this photo taken with slow shutter speed artists perform during the opening ceremony for the 2016 Summer Olympics in Rio de Janeiro, Brazil, Friday, Aug. 5, 2016. (AP Photo/Dmitri Lovetsky)

Artists perform during the opening ceremony for the 2016 Summer Olympics in Rio de Janeiro, Brazil, Friday, Aug. 5, 2016. (AP Photo/Jae C. Hong)

RIO DE JANEIRO, BRAZIL - AUGUST 05: Fans cheer during the Opening Ceremony of the Rio 2016 Olympic Games at Maracana Stadium on August 5, 2016 in Rio de Janeiro, Brazil. (Photo by Jamie Squire/Getty Images)

RIO DE JANEIRO, BRAZIL - AUGUST 05: Ban Ki-moon, IOC President Thomas Bach and Michel Temer watch the Opening Ceremony of the Rio 2016 Olympic Games at Maracana Stadium on August 5, 2016 in Rio de Janeiro, Brazil. (Photo by Julian Finney/Getty Images)

RIO DE JANEIRO, BRAZIL - AUGUST 05: Dancers perform Geometrization during the Opening Ceremony of the Rio 2016 Olympic Games at Maracana Stadium on August 5, 2016 in Rio de Janeiro, Brazil. (Photo by Elsa/Getty Images)

RIO DE JANEIRO, BRAZIL - AUGUST 05: Dancers perform during the Metropolis segment of the Opening Ceremony of the Rio 2016 Olympic Games at Maracana Stadium on August 5, 2016 in Rio de Janeiro, Brazil. (Photo by Elsa/Getty Images)

Daniel Jobim, the grandson of Brazilian composer Tom Jobim, performs during the opening ceremony for the 2016 Summer Olympics in Rio de Janeiro, Brazil, Friday, Aug. 5, 2016. (AP Photo/Matthias Schrader)

RIO DE JANEIRO, BRAZIL - AUGUST 05: A general view during the Pindorama "Birth of Life" segment of the Opening Ceremony of the Rio 2016 Olympic Games at Maracana Stadium on August 5, 2016 in Rio de Janeiro, Brazil. (Photo by Richard Heathcote/Getty Images)

Artists perform during the opening ceremony for the 2016 Summer Olympics in Rio de Janeiro, Brazil, Friday, Aug. 5, 2016. (AP Photo/Matt Dunham)