To celebrate D&BA's 15 years in the game, we have teamed up with South West Four Festival to bring you 50 artists across 18 hours of music with a single ticket. SW4 Sunday at Clapham Common features Pendulum Live, Magnetic Man Live, Sub Focus Live feat I.D, Andy C, Digital Soundboy Soundsystem, Annie Mac, Joker and many more. And because you wouldn't want the night to end early, we’re bringing you the ultimate D&B after party at the Clapham Grand with Andy C, Sub Focus (DJ set feat I.D), Friction, Loadstar, S.P.Y, Futurebound, Alix Perez b2b Rockwell and A.M.C who’ll be taking the vibes through until 6am. This competition gives you the chance to play alongside these legendary DJs, kicking things off with the opening set. Prizes include +3 on the door and free drinks all night. To enter simply submit a 30 minute mix to Mixcloud, in celebration of the last 15 years of drum & bass. D&BA's The Risky will be selecting the winner based on tune selection, flow and technical skill. Please note: this competition is for over 18s only. To enter submit a 30 min mix to Mixcloud by posting your mix with the title D&BA Birthday competition and tag it D&BA15.