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It's the final day of the Music For Youth Schools Prom, and Classic FM's Tim Lihoreau has been backstage at the Royal Albert Hall chatting to the performers of tonight's concert. Here he meets the members of SDK.
SDK are an urban-pop group from Hurstmere school in Sidcup, Kent.
Rappers Jack, Riad and Habib have been performing and writing together since they were 11 years old. Their lyrics aim to send out a positive message about teenage life counteracting the stereotypical view of rap music in the media. Singers Sami and Sam, keyboard player Tom and guitarist Joe completed the line up in March this year.
Tonight's performance at the Schools Prom is only their third public appearance together. Classic FM's Tim Lihoreau spoke to the group backstage before the performance.
Watch the interview below