Putting your festival in direct competition with Notting Hill Carnival - Britain's biggest street party - is a bold move by anyone's standards, but the Metro Weekender has proved a great success over the last few years, filling Clapham Common with seas of revellers. The event comprises two totally different days: Saturday is ‘SW4’, a dance music marathon whilst Sunday's ‘Get Loaded in the Park’ is left for more traditional bands. Unlike the major festivals, tickets won't be selling out within four minutes - so maybe this will engender a more of a chilled-out atmosphere. These parties on Clapham Common are always cheerful summer fun.