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The Capital Weekender With Ministry of Sound 10pm - 6am
8 June 2013, 12:54
The 'Brokenhearted' stars have just finished on stage as they prepare for tomorrow's big extravaganza.
Lawson have just finished on stage at Wembley Stadium as they enjoyed the "best soundcheck ever", according to drummer Adam Pitts.
The musician took to his Instagram page to post his thoughts as the group completed their set run through.
Adam put it simply: "The best sound check ever! Wembley!"
Lead singer Andy Brown was getting in the spirit first thing this morning, as he tweeted: "Wembley wembley wembley."
Joel Peat also joked around as he posted a shot of a split guitar pick.
The boys will be on a line-up that includes the likes of The Wanted, Robbie Williams, Taylor Swift, Labrinth and Jessie J.
This year's show on Sunday (9th June) will also be hosted by Justin Timberlake.
Keep it Capital for all the action from the Summertime Ball.
On Capitalfm.com, we're bringing you all the latest news, gossip, pictures, videos and performances from the event, and stay tuned to our live blog for the best backstage action.
On Twitter, keep it @CapitalOfficial using the hashtag #CapitalSTB and download the Capital App to watch all the live performances.