Added to Saturday's line up are AN21 & Max Vangelli, a world exclusive from Let The Music Play, Sunnery James and Ryan Maciano, and Tim Mason.

Joining the bill on Sunday are Brodinski & Gesaffelstein, Delta Heavy, Loadstar, Jaymo & Andy George, Jeremy Orlander, Jesse James and Johnny Bloomfield.

The full arena breakdown for the festival has now been announced too, and the full SW4 line-up so far is as follows:

SATURDAY 25TH AUGUST

SW4 MAIN STAGE IN ASSOCIATION WITH LAST.FM

Chase & Status [Live] / Carl Cox/ Knife Party / Benny Benassi / Mark Knight / Zane Lowe / John Dahlback / Let The Music Play [World Exclusive]

DJ MAGAZINE ARENA HOSTED BY SUBLIMINAL IN ASSOCIATION WITH VIEW LONDON

Erick Morillo / An21 & Max Vangelli / Funkagenda / Sunnery James and Ryan Marciano / Tim Mason / Special guest: Roger Sanchez

EVOLUTION ARENA IN ASSOCIATION WITH RADIO FG

Paul Van Dyk / Markus Schulz / Gareth Emery / Aly & Fila / John O’ Callaghan / Richard Durand / Claudia Cazacu / Gary Proud

BEDROCK ARENA IN ASSOCIATION WITH MIXCLOUD

John Digweed / Joris Voorn / Âme / Guy Gerber / Robert Babicz / Laura Jones / Jozif

SUNDAY 26TH AUGUST

SW4 MAIN STAGE HOSTED BY UKF BASS CULTURE IN ASSOCIATION WITH LAST.FM

Skrillex / Skream & Benga / DJ Fresh / Foreign Beggars / Dillon Francis / Rudimental + very special guest & live headliner to be announced

DJ MAGAZINE ARENA HOSTED BY TOGETHER IN ASSOCIATION WITH VIEW LONDON

2 Many DJs (DJ set) / Eric Prydz / Simian Mobile Disco / Erol Alkan / Green Velvet / Brodinski & Gesaffelstein B2B / Jeremy Orlander

ALL GONE PETE TONG ARENA IN ASSOCIATION WITH PULSE RADIO

Sasha / Pete Tong / Seth Troxler / Maya Jane Coles / Dyed Soundorom / Eats Everything / Jesse James & Johnny Bloomfield

RAM 20TH ANNIVERSARY IN ASSOCIATION WITH DRUM & BASS ARENA & GET DARKER

Andy C Alive / Flux Pavilion / Jack Beats / Borgore / Friction / Delta Heavy / Loadstar / Doctor P

Clapham Common, Clapham, London, SW4 9DE  Sat 25th to Sun 26th August 2012

Tickets on sale HERE