Blind Channel from Finland perform at the second semi-final of the Eurovision Song Contest at Ahoy arena in Rotterdam, Netherlands, Thursday, May 20, 2021.(AP Photo/Peter Dejong)

Dadi og Gagnamagnid from Iceland perform via video link at the second semi-final of the Eurovision Song Contest at Ahoy arena in Rotterdam, Netherlands, Thursday, May 20, 2021. A member of Dadi og Gagnamagnid tested positive for COVID-19 and the band made the decision to withdraw from performing in this year's live Eurovision Song Contest shows, as they only want to perform together as a group. (AP Photo/Peter Dejong)

Senhit, left, from San Marino performs with rapper Flo Rida at the second semi-final of the Eurovision Song Contest at Ahoy arena in Rotterdam, Netherlands, Thursday, May 20, 2021. American rapper Flo Rida injected extra star power to the second semifinal of the Eurovision Song Contest on Thursday night, when he joined San Marino singer Senhit's performance. "It's such a good feeling to be back in Europe after so long," the rapper said in comments released by the popular contest's organizers. "I'm very grateful to be able to perform once again, and on the biggest stage in the world." (AP Photo/Peter Dejong)

The Black Mamba from Portugal perform at the second semi-final of the Eurovision Song Contest at Ahoy arena in Rotterdam, Netherlands, Thursday, May 20, 2021.(AP Photo/Peter Dejong)

Natalia Gordienko from Moldova performs at the second semi-final of the Eurovision Song Contest at Ahoy arena in Rotterdam, Netherlands, Thursday, May 20, 2021.(AP Photo/Peter Dejong)

Dutchman Duncan Laurence, 2019 winner, who tested positive on corona, performs during the first semifinal of the Eurovision Song Contest at Ahoy arena in Rotterdam, Netherlands, Tuesday, May 18, 2021. The coronavirus cost Iceland the chance of performing in the second semifinal, with band Dadi og Gagnamagnid pulling out after one member tested positive. A recording of one of their dress rehearsals will be played, instead. Laurence will not perform at Saturday's final, organizers announced. (AP Photo/Peter Dejong)

VICTORIA from Bulgaria performs at the second semi-final of the Eurovision Song Contest at Ahoy arena in Rotterdam, Netherlands, Thursday, May 20, 2021.(AP Photo/Peter Dejong)

Dadi og Gagnamagnid from Iceland perform via video link at the second semi-final of the Eurovision Song Contest at Ahoy arena in Rotterdam, Netherlands, Thursday, May 20, 2021. A member of Dadi og Gagnamagnid tested positive for COVID-19 and the band made the decision to withdraw from performing in this year's live Eurovision Song Contest shows, as they only want to perform together as a group. (AP Photo/Peter Dejong)

Stefania from Greece performs at the second semi-final of the Eurovision Song Contest at Ahoy arena in Rotterdam, Netherlands, Thursday, May 20, 2021.(AP Photo/Peter Dejong)

Anxhela Peristeri from Albania performs at the second semi-final of the Eurovision Song Contest at Ahoy arena in Rotterdam, Netherlands, Thursday, May 20, 2021.(AP Photo/Peter Dejong)

Natalia Gordienko from Moldova performs at the second semi-final of the Eurovision Song Contest at Ahoy arena in Rotterdam, Netherlands, Thursday, May 20, 2021.(AP Photo/Peter Dejong)

Rapper Flo Rida performs during San Marino's entry at the second semi-final of the Eurovision Song Contest at Ahoy arena in Rotterdam, Netherlands, Thursday, May 20, 2021. American rapper Flo Rida injected extra star power to the second semifinal of the Eurovision Song Contest on Thursday night, when he joined San Marino singer Senhit's performance. "It's such a good feeling to be back in Europe after so long," the rapper said in comments released by the popular contest's organizers. "I'm very grateful to be able to perform once again, and on the biggest stage in the world." (AP Photo/Peter Dejong)

Samanta Tina from Latvia performs at the second semi-final of the Eurovision Song Contest at Ahoy arena in Rotterdam, Netherlands, Thursday, May 20, 2021.(AP Photo/Peter Dejong)

The Black Mamba from Portugal perform at the second semi-final of the Eurovision Song Contest at Ahoy arena in Rotterdam, Netherlands, Thursday, May 20, 2021.(AP Photo/Peter Dejong)

Natalia Gordienko from Moldova performs at the second semi-final of the Eurovision Song Contest at Ahoy arena in Rotterdam, Netherlands, Thursday, May 20, 2021.(AP Photo/Peter Dejong)

Stefania, centre, from Greece performs at the second semi-final of the Eurovision Song Contest at Ahoy arena in Rotterdam, Netherlands, Thursday, May 20, 2021.(AP Photo/Peter Dejong)

Blind Channel from Finland perform at the second semi-final of the Eurovision Song Contest at Ahoy arena in Rotterdam, Netherlands, Thursday, May 20, 2021.(AP Photo/Peter Dejong)