Discover the UK's biggest free ticketed music event – this year on a massive scale to celebrate 2012.  Starring: Jay-Z, Rihanna, M.I.A, H.O.V.A., Kanye West Set List: 1. Run This Town ft. Rihanna 2. Dirt Off Your Shoulder 3. I Just Wanna Love U (Give It 2 Me) 4. PSA 5. Where I'm From 6. Jigga What, Jigga Who 7. U…