Fans wanting to see Adele live in Vegas will need to be double-vaccinated and test negative for COVID-19.
The British songstress sent the internet into a frenzy when she announced her residency at Caesars Palace, dubbed Weekends With Adele, would begin in January.
With tickets now on sale, fans have been met with a notice on the Ticketmaster website detailing the COVID-19 rules they would need to follow.
What are the rules?
"Both proof of vaccination AND proof of a negative test within 48-hours of the event is required to enter the event," according to the website.
It must have been at least 14 days since their second vaccine dose, and the negative test result must have been received within 48 hours of the event.
The booking site adds: "Proof of vaccination and negative test result must be issued from the healthcare provider performing the vaccination or test.
"Both documents are required for entry and can be displayed on your smartphone or as physical copies. Tests administered via an at-home kit will not be permitted."
Children wanting to see the Easy On Me singer who are not eligible for a jab will not have to give proof of vaccination, but a negative test will still be required.
Is Adele behind this?
According to the notice, the rules have been requested by the "event organisers", which typically refers to the venue and not the singer.
However, Rod Stewart, 76, is also performing at Caesars Palace, and unvaccinated fans are allowed at his shows, instead being required to wear a mask and have a temperature check before entering.
Sting is set to play at the venue’s Colosseum next June, but no COVID restrictions have been shared.
Adele has previously voiced her concerns about coronavirus, saying "it’s too unpredictable".
"I don’t want anyone coming to my show scared. And I don’t want to get COVID, either," she added.
The 33-year-old announced her Vegas residency following the release of her much anticipated fourth album, 30.
Her return was welcomed around the world, with her latest album racking up 60.7 million streams in one day, according to Spotify.