Vodafone Firsts and Capital have teamed up to give four unsigned acts their big break, with MiC Lowry, Only The Young, Vicky Jones and Brad Kavanagh competing to perform onstage at Wembley Arena at Capital's Summertime Ball alongside Pharrell, Miley Cyrus and Ellie Goulding on June 21.

The winner will be chosen by the capitalfm.com audience and mentored by boyband The Vamps. Capital presenter Marvin Humes commented 'It's great that, thanks to Vodafone Firsts, one of these really talented acts will get the same chance I did, and step into the spotlight'.