Ashton Kutcher has been Punk'd!

Disgusted by Kutcher's hit MTV show, Sir John Hargrave — who runs the comic site Zug.com — decided to give Kutcher a taste of his own medicine.

Hargrave — a Boston-based prankster who calls Punk'd "Candid Camera for morons" — legally changed his name to Ashton Kutcher.

He then created a Web site and posted fake messages supposedly from Kutcher's voicemail box. (One was from an angry mistress, another from Bruce Willis, Demi Moore's ex.)

Worldwide media outlets covered the site, despite claims from Kutcher's rep that it was fake.

In the end, Kutcher was forced to admit that he'd been duped.

Hargrave has been pulling pranks long before Kutcher hit MTV.

He once wrote letters to celebrities, claiming to be a terminally ill girl, just to see who would respond.

For the record, Angelina Jolie and Oprah Winfrey never got back to him, but U2's Bono sent him an autograph and T-shirt.