James Corden hosts this year's star-studded ceremony - all on his lonesome - from the O2, featuring performances by Take That, Tinie Tempah, Plan B, Rihanna, Mumford & Sons, Adele, Cee Lo Green and Arcade Fire. Urban artist Tinie Tempah leads the way with four nominations, including best British Single for Pass Out, and best British Male Solo Artist, competing against Mark Ronson, Paul Weller, Plan B and veteran rock star Robert Plant, who picks up his first-ever Brit Award nomination. Also in the running for prizes are X Factor winners Matt Cardle and Alexandra Burke alongside judge Cheryl Cole, Bruno Mars, Justin Bieber, David Guetta, Taio Cruz and the xx. The award for the best Breakthrough Act has been decided by votes from Radio 1 listeners across the wa-her.