Aussie American Idol stalker pleads guity

A Melbourne woman has pleaded guilty to stalking a female American Idol contestant over the internet.

Tanya Maree Quattrocchi, who was sent to trial last year on charges of stalking singer Diana DeGarmo, was arrested again earlier this year for similar offences.

The 23-year-old of Oak Park in Melbourne's north pleaded guilty in the Victorian County Court on Wednesday to four counts of stalking.

Police allege Quattrocchi stalked DeGarmo, the singer's mother Brenda and the Tennessee star's housemate, model Donielle (Donielle) Morris.

The charges relate to the time between November 2007 and January this year.

The court was told Quattrocchi has been in custody since January on the new charges.

She applied for bail in the Melbourne Magistrates Court in April but was knocked back on the basis she posed an unacceptable risk of reoffending and interfering with witnesses.

DeGarmo was runner-up in the third series of the reality television show in 2004, and has since released an album titled Blue Skies.

She has also appeared on Broadway in a production of Hairspray.

Judge Lisa Hannan remanded Quattrocchi into custody until her pre-sentence hearing on May 26.

- AAP