The Sucker singers will headline the main stage of the live music event in Dundee, Scotland on Saturday 27 May.
Mimi Webb, Thirty Seconds To Mars and Tom Grennan are also among the news acts added to the line-up of the festival at Camperdown Park, Dundee running from from Friday 26 to Sunday 28 May.
Jonas Brothers said: “We can’t wait to perform in Scotland for Radio 1’s Big Weekend 2023! We’re excited to play your favorite songs as well as some new music. There are going to be some great artists there. It’s going to be epic!”
The boyband - Nick, Joe and Kevin Jonas - rose to fame on the Disney Channel after forming in 2005. They took a hiatus in 2011 to focus on solo careers and reunited in 2019.
House On Fire hitmaker Webb said: “I’m so excited to be back performing at Big Weekend! Last year’s was one of my favourite shows of the summer. This year’s performance will be even better with an all new and improved set with songs from my debut album.”
Thirty Seconds To Mars said: "We are very excited to join the madness once again with our old friends at Big Weekend. It’s always a magical event, and we’re very much looking forward to sharing the stage with so many talented artists. Big thanks to our friends at Radio 1 for having us again, we can’t wait to be back. And we may even have a few surprises…”
And Little Bit Of Love singer Grennan said: “I cannot wait to be playing Radio 1’s Big Weekend! It’s one of the biggest shows of the year and not only that, it’s in Scotland, Dundee! The best fans in the world! Here we gooooo!”
Also performing on the main stage will be The 1975, ArrDee, Jess Glynn and Joel Corry.
Rudimental is headlining the Future Sounds stage while acts on the BBC Introducing Stage include Akemi Fox and Venbee.
Tickets for Saturday and Sunday go on sale on the official BBC website at 8.30am on Friday 24 March and will cost £33.50.
Tickets for Friday's Dance line-up start at £20.50.
Friday 26 May will be a special Dance line-up. Friday 26 May tickets for Radio 1’s Big Weekend go on sale at 6.30pm Friday 31 March and will cost £18 (plus a £2.50 booking fee per ticket).
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