The Summertime Ball is a mini-festival in London, held each first or second Saturday of June by Global Radio. The first ball was at Emirates Stadium in 2009, and it has since been held at Wembley Stadium. It is promoted and broadcast by the Capital network. There have been four different sponsors since its first event. Since 2012, Vodafone has been the sponsor. In 2009, Barclaycard sponsored the ball. The following year ASOS.com sponsored the event, with Starbucks sponsoring the event in 2011. More on Wikipedia.