
Here's "Sex and the City" star
Cynthia Nixon with her newly shaved head for her role in the Broadway play "Wit" in NYC on Tuesday (
left) -- and embattled bald icon singer
Sinead O'Connor in L.A. a few weeks ago (
right).
Question is ...
Actresses
Jodie Foster, 47, and
Cynthia Nixon, 44, joined forces at a Women in Film & Television event in NYC on Tuesday.

The question is...
Cynthia Nixon, 43,
Sarah Jessica Parker, 44, and
Kristin Davis, 45, left their "
Sex and the City" New York digs for an event in Las Vegas on Thursday.
Question is ...
With rumors swirling for years of on-set tensions, TMZ has exclusively learned the identity of the biggest bitch on "Sex and the City." The answer may surprise you.
The "
Sex and the City" NYC premiere will be hilarious, even if the film sucks.

Sources tell TMZ
Sarah Jessica Parker has 50 tix to the May 27 show at Radio City Music Hall.
Kim Cattrall,
Cynthia Nixon and
Kristin Davis each scored 25. So even if it's a giant yawn, 125 people will be laughing their skinny little asses off.
Parker got the extra tix because she contributed a lot to the Caroline Kennedy Fund for Public Schools, the beneficiary of the event.
She barely sees her own kids, but Britney Spears had someone else's shouting at the paparazzi as she went into Bally Total Fitness.
Also in L.A.: Simon Cowell said "God Bless You" more than the Pope, Alessandra Ambrosio could barely move on Robertson, Paris went out with yet another Hilton brother, Joe Pesci hooked back up with DUI hottie Angie Everhart and David Hernandez said he'd like Paula Abdul to have his babies.
In NY: "Gossip Girl" guy Penn Badgley and Cynthia Nixon ... yeah, not much was going on there.
"Sex and the City" star
Cynthia Nixon enjoyed a night out with her girlfriend
Christine Marinoni at a NYC benefit.

Boy, are they in love!
The quirky yentas of "
Sex and the City" were out together last night -- but one of 'em didn't look too happy about it.
TMZ spotted
Sarah Jessica Parker,
Kim Cattrall and
Kristin Davis (sorry, no Miranda in sight) at Butter in New York. A sour-faced Cattrall left the restaurant moments after SJP arrived, rushing to hail a cab and get the heck outta there as fast as possible. Well!
Though Kim clearly wasn't in good spirits, Kristin Davis was thrilled to start shooting the movie version of the show -- exiting Butter as chipper as her on screen alter-ego, Charlotte York.
When asked about the highly anticipated "
Sex and the City" movie on Monday,
Kristin Davis was tight-lipped and stuck to her script. C'mon Charlotte, it's been three years!!
While surrounded by paparazzi outside Mr. Chow in Beverly Hills, everyone's favorite uptight Park Avenue princess revealed that as far as the SATC movie is concerned, "We're very excited about the possibility. That's what I'm supposed to say." For the love of Manolo Blahnik!
Kristin, Sarah Jessica Parker, Cynthia Nixon AND Kim Cattrall are reportedly all reprising their "Sex" roles for a big screen version of the
hit HBO series. Because, seriously, is there anyone who doesn't want to pay $10 to see four 40-something women parade around Manhattan like 22-year-olds?!