Clash S01E04 - Episode 4

The teams are under pressure to get their mash-up tracks in shape for their live performances on stage at Radio 1's Big Weekend, and it's beginning to resemble X-Factor down at the rehearsal rooms. As if thatwasn't enough, the teams are not allowed to use any of their own instruments when Lesley Garrett and vocal group Naturally 7 set a 'half-baked' singing challenge.