A Florida music event promoted will charge a premium to those who have not had the Covid-19 vaccine.
The concert promoter has come up with a discounted ticket at $18 for those who have been vaccinated, and will charge $999.99 to those who haven't.
The idea is to encourage people to get the coronavirus vaccine, especially before attending a large gathering such as a music gig.
Leadfood Promotions' Paul Williams says he wants people to be able to enjoy the concert safely and avoid having new lockdown measures in place, after a year mostly without events and big crowds.
He said he got the idea when vaccination appointments opened in his state, Florida.