Music superstar Adele said she will make two performances at London’s Hyde Park next summer, her first in five years, an announcement British media said has blocked the singer’s website because the fans raced for pre-sale tickets.

The 33-year-old artist, who topped the US and British charts last week with her comeback single, “Easy On Me”, went to Twitter with the message “Oiii Oiiiiiiiiiiiii”, sharing concert dates July 1st and 2nd and the presale link on your page.

The shows, part of the BST Hyde Park concerts, are Adele’s first since 2017.

But several British media outlets reported the site had crashed, citing fans who said they were unable to register for tickets in advance.

“I tried to register for more than 2 hours, but I couldn’t do it,” tweeted one of them.

“Trying to register for @Adele’s Hyde Park presale, but not even register with you haha! I think winning the lottery is easier than getting tickets to these concerts,” wrote another.

When clicked, the site’s presale registration tab showed the message: “Currently unavailable, please try again later.” Some fans said they managed to register.

Other artists who will perform at the Hyde Park concerts include Elton John, Duran Duran and Pearl Jam.