John Wilson interviews two of the year's most high-profile musical successes, Tinie Tempah and Plan B. Both come from less than prosperous London backgrounds, and both have drawn on their upbringings in their songwriting. Tinie Tempah reflects on his attitudes towards his success and his aspirations, analyses his lyric-writing and remembers an encounter with royalty. Plan B discusses his chart-topping concept album, The Defamation of Strickland Banks, and reveals his ambitions as a film-maker and writer. Producer John Goudie.