X Factor judge Tulisa and the show's 2008 winner Alexandra Burke are the latest big-name acts to be added to this summer's T4 on the Beach concert in Weston-super-Mare.
The pair are among five performers to be added to the line-up this afternoon, ahead of the seafront spectacular's tenth anniversary show on Sunday, July 1.
Before going into judging on the X Factor, Tulisa was a member of the hip hop group N-Dubz alongside her cousin Dappy, who is also down to perform on stage at Weston-super-Mare.
Alexandra, meanwhile, won the ITV1 show's fifth series, and has become one of the country's top R&B artists after seeing her debut single, Hallelujah, become Christmas No.1.
Joining Tulisa and Alexandra on the Weston stage will be Conor Maynard, Rita Ora and Wretch 32.
T4 bosses have also announced that the cast of Channel 4 reality show Made in Chelsea will also be heading to Somerset for the concert.
As well as the acts announced today, they will also be treated to performances from Dappy, Little Mix, Professor Green, Rizzle Kicks, DJ Fresh, Labrinth and Cover Drive.
Around 50,000 tickets are on sale now, and cost £40 plus booking fees. Click here to visit the T4 on the Beach ticket information page.
Click here to buy T4 on the Beach tickets at Ticketmaster.
Tickets are also on sale at the Weston-super-Mare Tourist Information Centre, based at the Winter Gardens on Royal Parade.