The 12-year-old prankster who was arrested for calling police to Ashton Kutcher's Hollywood home during a 'swatting' call last year (12) has owned up to wasting the authorities' time.

The unnamed kid admitted to two felony counts in connection with hoaxes relating to the Kutcher joke and another on a Los Angeles bank.

The pre-teen felon made a crank 911 call, claiming there were people inside the actor's home with guns and explosives and that several people had been shot.

The child was also charged with 'swatting' Justin Bieber but did not admit to that count.

According to Tmz.com, he has been returned to his parents and faces sentencing soon.