Soon-to-split boyband JLS are the latest headliners for a series of major outdoor shows in London's Hyde Park.
The group, who announced last month that they will call it a day after a farewell tour later in the year, will share a bill with The Beach Boys and The Saturdays.
They are to play the new festival Barclaycard Presents British Summer Time Hyde Park, performing at a family-friendly day of acts on Sunday July 7.
The event also features performances of The Gruffalo and Horrible Histories stage shows.
Performers lined up for other days during the festival include The Rolling Stones, Bon Jovi and Sir Elton John. Jennifer Lopez and Lionel Richie were unveiled on Wednesday as the stars topping the bill at the finale concert on July 14.
Rob Hallett of promoter AEG Live said of the latest line-up: "I have always wanted to promote a show where you can take your kids and your parents. Junior can be enthralled with the Gruffalo and your daughter can scream at JLS while your parents dance around to The Beach Boys."