The lettering 'Eurovision Song Contest Vienna 2026' is seen during a light show as part of the official opening of the stage at the Wiener Stadthalle prior to the 70th Eurovision Song Contest (ESC), in Vienna, Austria on April 28, 2026. Vienna will host the two semi-finals of the ESC taking place on May 12 and May 14 and the final on May 16, 2026. (Photo by Joe Klamar / AFP via Getty Images)

Austrian President Alexander Van Der Bellen (C) pushes the red button to start a light show for the official opening of the stage prior to the 70th Eurovision Song Contest (ESC) at the Wiener Stadthalle in Vienna, Austria on April 28, 2026. Vienna will host the two semi-finals of the ESC taking place on May 12 and May 14 and the final on May 16, 2026. (Photo by Joe Klamar / AFP via Getty Images)

The lettering 'Eurovision Song Contest Vienna 2026' is seen during a light show as part of the official opening of the stage at the Wiener Stadthalle prior to the 70th Eurovision Song Contest (ESC), in Vienna, Austria on April 28, 2026. Vienna will host the two semi-finals of the ESC taking place on May 12 and May 14 and the final on May 16, 2026. (Photo by Joe Klamar / AFP via Getty Images)

A light show is seen during the official opening of the stage attended by the Austrian President at the Wiener Stadthalle prior to the 70th Eurovision Song Contest (ESC), in Vienna, Austria on April 28, 2026. Vienna will host the two semi-finals of the ESC taking place on May 12 and May 14 and the final on May 16, 2026. (Photo by Joe Klamar / AFP via Getty Images)

Austrian President Alexander Van Der Bellen pushes the red button to start a light show during the official opening of the stage prior to the 70th Eurovision Song Contest (ESC) at the Wiener Stadthalle in Vienna, Austria on April 28, 2026. Vienna will host the two semi-finals of the ESC taking place on May 12 and May 14 and the final on May 16, 2026. (Photo by Joe Klamar / AFP via Getty Images)

Guests take footage with their mobile phones of a light show during the official opening of the stage attended by Austrian President at the Wiener Stadthalle prior to the 70th Eurovision Song Contest (ESC), in Vienna, Austria on April 28, 2026. Vienna will host the two semi-finals of the ESC taking place on May 12 and May 14 and the final on May 16, 2026. (Photo by Joe Klamar / AFP via Getty Images)

Austrian President Alexander Van Der Bellen (R) pushes the red button to start a light show during the official opening of the stage prior to the 70th Eurovision Song Contest (ESC) in Vienna, Austria on April 28, 2026. Vienna will host the two semi-finals of the ESC taking place on May 12 and May 14 and the final on May 16, 2026. (Photo by Joe Klamar / AFP via Getty Images)

Austrian President Alexander Van Der Bellen (R) speaks during the official opening of the stage prior to the 70th Eurovision Song Contest (ESC) at the Wiener Stadthalle in Vienna, Austria on April 28, 2026. Vienna will host the two semi-finals of the ESC taking place on May 12 and May 14 and the final on May 16, 2026. (Photo by Joe Klamar / AFP via Getty Images)