Herdman was born in
Hampton, London. Josh and his father Martin Herdman were involved in a motorcycle accident on 15 September 2015 in
Hounslow while navigating a small roundabout. Their motorcycle skidded on oil and the two were thrown off, knocked unconscious and sustained injuries. Both were left waiting with police, who arrived shortly after the accident, for an ambulance for approximately 90 minutes after the accident. The police were reportedly unable to take them to a hospital in their cars due to the two men's injuries and a supposed lack of insurance coverage if something were to happen while en route. At some point, another ambulance had stopped and passed by but was unable to attend to them possibly because it had been full or was attending to another emergency. Eventually an ambulance arrived at 3:59 pm, almost an hour and a half after the accident, as other ambulances had been diverted to higher priority calls. They were taken to
West Middlesex University Hospital. Martin suffered a torn ligament on his ankle and additional cuts and bruises. == Career ==