London rapper Wretch 32 has put his hearing to the test in a unique experiment as part of a new Network Rail safety campaign aimed at young men.
The video shows Wretch 32 and spoken word performer George the Poet battle to make a split second decision, relying only on their hearing to work out which direction a train is coming from as it travels towards them at 80mph in the dark.
Find out what happened here.
More top news
A teenager has been airlifted to hospital after being stabbed outside a DLR station in south-east London.
By law, the Met Police has a duty to police public land outside grounds - that's costing them £9.3m a season.
John, who began running for Age UK back in the 1980s when he was aged 53, has raised an incredible amount since then - more than £40,000.