A group of West Australian men have been charged over a Leederville kidnapping hoax, which was broadcast on YouTube.

WA Police received a call from a member of the public who described seeing a handcuffed, naked male youth escape from the boot of a car and run into nearby bushland.

The mystery caller also described how the youth appeared to be being chased by another man on Vincent Street near the Mitchell Freeway overpass in Leederville.

But authorities claim the kidnapping was a hoax orchestrated by five young men.

They recorded the fake kidnapping, edited the vision and then uploaded it onto one of their YouTube accounts, police will allege in court next month.