Josh Tate (Little T) and Sophie Aspin became locked in an online battle which saw their Blackpool-based music channel gain over 40 million hits. Since then their work has been recognised by Stormzy and Ed Sheeran.
Ahead of a new documentary on Blackpool grime, Josh and Sophie have spoken to the BBC about the price of hitting it big online.
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Produced by Nisha Lahiri and Tammi Walker
Video Journalist: Ameer Ahmed
Executive Producer: Chris Gibson