By Stephen M. Silverman
Updated October 23, 2002 01:00 PM

Onetime publicist to such stars as Britney Spears and Jay-Z, Elizabeth S. Grubman — Lizzie to all, especially tabloid headline writers — is due to enter jail for at least 60 days on Wednesday.

The New York Times notes that she has given up smoking, taken up kick-boxing and swapped her Seven jeans for sweatsuits and sneakers.

Her incarceration, in the Suffolk County Court in Riverhead, N.Y., comes as punishment after having backed her father’s black Mercedes SUV into a crowd of Hamptons club-goers in July of last year.

Her father is powerful entertainment attorney Alan Grubman, who is among those due to escort her to the jail, where she is expected to be greeted at the gate by a horde of news photographers, who had been invited by the county sheriff’s office to tour the jail earlier this week, says reports.

The Times notes that Lizzie, 31, can take two sweatsuits, a pair of sneakers and seven sets of undergarments to jail. On Monday, the New York Post ran a photo of her shopping for sweats at TJ Maxx. Grubman also told a columnist for the paper that she was scared but prepared for jail.

New York’s Daily News, meanwhile, solicited advice from former inmates of the institution, who, among several recommendations (mostly that she should mind her own business), suggested that Grubman accept a job in the jail kitchen in order to land the prized bologna sandwiches. (Obviously, Grubman is used to finer fare.)

Grubman’s publicist, Dan Klores, called the press attention repugnant, he told The Times. “I’m trying to remember if the jailers of John Gotti gave a tour of the prison to the media,” he said, adding, “It’s an extremely difficult time for Lizzie.”

Grubman pleaded guilty to a felony charge of leaving the scene of an accident and a misdemeanor charge of criminally negligent assault. She could be freed after 40 days, if she demonstrates good behavior behind bars. But she then faces civil lawsuits from many if not all of the 16 people injured in the crash in front of the Conscience Point Inn nightclub in Southampton.