Labrinth, Tulisa, Chipmunk also contribute to the charity single
Rapper pens new track for Saturday's (May 28) clash
And Tinchy Stryder vents his anger after failing to win
MC thrills The Arena audience with Chemical Brothers/Calvin Harris-sampling set
Number Five defender meets Number One chart star
Grime star teams up with Sugababe for new hit
More names are added to Irish bash bill
Meanwhile Bob Dylan stays at album chart summit
Stryder's song 'Number 1' aptly hits the chart peak