Wireless Festival is an annual music festival in London, England. It is owned and managed by American entertainment company Live Nation. The first Wireless festival was in 2005 in Hyde Park, London. Since then is has been held at Harewood House, Leeds (2006-07), Olympic Park, London (2013) and Finsbury Park, London (2014-Present). From its inception to 2008, Wireless was sponsored by O2 then from 2009-2012 it was sponsored by Barclaycard. Since 2013 Wireless has been sponsored by Yahoo!