Dappy Contostavlos stunned fans at T4 Stars of 2011 with a stripped-back performance of 'No Regrets'.
The N-Dubz singer took to the stage with Tinchy Stryder to perform their 'Spaceship' collaboration at London's Earls Court yesterday (11.12.11), before he launching into his solo UK number one hit, beginning with an acoustic guitar and leading to a full-blown version of the song, wowing the 15,000-strong crowd.
Other performers at the all-day event included The Wanted, Ed Sheeran, Wretch 32, Professor Green, Labrinth, Cher Lloyd and Pixie Lott.
Jessie J sang her tracks including 'Nobody's Perfect' during her set, and later praised the "amazing" audience.
She wrote on twitter: "T4 was amazing!!! I feel mega happy. This year has been over whelming and it only gets better. :D 2012 is gonna be a special year I can feel it! <3 major love for my #heartbeats x (sic)"
Example closed the day, performing his single 'Changed the Way You Kiss Me'.
After his performance, he wrote: "T4 crowd were polite and bouncy. I'm going gym and then ordering some Japanese Tapas and watching a fillum (sic)".