Next weekend sees the SW4 festival hit London (Sat 26) and Cardiff (Sun 27) and the line-up for both days includes Carl Cox, Oakey, Mauro Picotto, Fergie and a load more.
If you fancy some daytime raving then we've got a pair of tickets to give away for each city and we'll even throw in pairs of tickets for the afterparties at Brixton Academy (London) and Wish Club (Cardiff).
To win tell us what you think the SW in SW4 should stand for (funniest suggestions win). Email your answers to firstname.lastname@example.org by midnight on Monday with SW4 and your preferred city in the subject line.
For more info and full line-up then go to www.southwestfour.com