A man who pleaded guilty to stalking country music songstress Shania Twain has been denied bail after a judge raised questions about the man's ability to look after himself.

Giovanni (John) Palumbo has been in custody in Toronto since March. Defence lawyers arrived in court at 9 a.m. Wednesday asking for Palumbo to be released on bail.

But the request was rejected after the judge said he wasn't satisfied that Palumbo could be adequately supervised.

After the judge announced his decision, Palumbo shouted out in the courtroom. "You know you're all very sick, you really are -- it's so sad," he said.

"Have fun, because I'm going to keep having fun, wherever I am.... What a bunch of psychopaths. Woo hoo.

"Shame, shame, shame. Shame on all of you!"

The former Ottawa doctor recently completed a three-week long psychiatric assessment. The review found Palumbo is living with a bipolar disorder and narcissistic personality disorder, the court heard.

Earlier this month, Palumbo pleaded guilty to failing to comply with a court order and criminal harassment.

Defence lawyers want Palumbo to be credited for the time he's served in custody.

The Crown, on the other hand, is pushing for a conditional sentence and probation.

Palumbo's sentencing was delayed Tuesday after the Crown decided that they want the doctor who assessed Palumbo to take the stand at a later date.

Palumbo was arrested for allegedly breaking a restraining order by attending the Juno Awards where Twain was being entered into the Canadian Music Hall of Fame.

Prior to that incident, Twain had placed a restraining order against Palumbo for sending her hundreds of letters and showing up at her Muskoka cottage.

In late September, Twain told a court via video link that the man's appearances outside her property and personal gifts made her feel uncomfortable.

With files from CTV Toronto's Zuraidah Alman and The Canadian Press