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9 June 2013, 21:30
The 'All Fired Up' singers speak backstage at the event as they prepare to take to the stage.
The Saturdays have said that they still get "nervous" performing at the Summertime Ball despite it being four years since they made their debut at the event.
The girls were without Rochelle – who recently gave birth to her first child with Marvin Humes – and admitted they can't believe where all the time has gone.
Looking back with nostalgia, Una Healy said: "We're nervous and excited. Time goes by so quickly.
"I can't believe that it's actually four years since our first Summertime Ball. It's mad. It's actually really sad."
The foursome also joked about not testing their racy on-stage outfits and were keen to get on stage in front of 80,000 fans.
Check out The Saturdays speaking to Capital FM backstage at the Summertime Ball 2013 below:
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