Olivia Dean was left "crying all day" before headlining her first festival in America on Saturday night (02.08.26).

The 27-year-old singer took to her Instagram page to share a video of herself on stage at Lollapalooza in Chicago, as she wrote: "My first time headlining a festival in America - 97,000 of you!! Truthfully I had been crying all day beforehand trying to process how we even got to this point.

"Thank you for sharing your love with me and thank you to everyone on my team who makes it possible for us to shine up there!!!!!"

Olivia concluded: "Love always!!!"

Lollapalooza commented on Olivia's post: "You are a STAR. Thank you for giving us EVERYTHING."

While her Rein Me In collaborator Sam Fender added: "Legend!"

Olivia was joined by Sam on stage at the festival to perform their chart-topping tune, after it made history as the longest-running number one single in UK chart history on Friday (31.07.26).

The duet - which first entered the charts back in June 2025 - topped the chart again on Friday, marking its 19th non-consecutive week at the top slot - breaking a record previously set in 1953 by Frankie Laine's I Believe.

Speaking as he received the Official Chart Record Breaker Award from the Official Charts Company, Sam said: "Completely lost for words, thank you so much to Olivia Dean and the fans for making this song the juggernaut that it is. Can't believe we broke the UK record!"

Official Charts bosses have congratulated the "exceptional" duo on their achievement.

Becca Monahan and Chris Austin, interim Co-Managing Directors, Official Charts, said: "Congratulations to Sam Fender and Olivia Dean on an extraordinary, history-making achievement.

"For Rein Me In to break a record that has stood for 73 years is remarkable in itself, but it feels especially significant to see two homegrown British artists write a new chapter in Official Chart history together.

"Sam and Olivia are both exceptional talents, and the incredible connection Rein Me In has made with audiences speaks to the strength and ambition of British music today.

"At a time when UK artists are competing on a truly global stage, this is a fantastic moment to celebrate British creativity - and a record-breaking Number 1 that will now sit proudly in the history books."

Although it was released last June, Rein Me In took almost eight months to take the top slot, hitting number one on 20 February this year.