Bai Ling's mysterious trip to the roof of Dr. Drew's recovery center led to a 911 call to the facility this evening ... TMZ has learned.



Law enforcement sources tell us the call came in to Pasadena PD around 5:30PM ... Bai Ling was on the roof and there was concern for her safety.

Bai Ling is on the new season of "Celebrity Rehab" ... which, coincidentally, is just starting to shoot.

Before officers could respond ... we're told Bai came in from the roof -- and since there were medical professionals there to handle the situation there was no need for the police.

As for whether Bai was in danger -- multiple sources at the center tell us they were unaware of any emergency.

She's loony as the day is long -- but even Bai Ling was a little weirded out when a guy with little regard for personal space hit her up for cash.

Even more surprising: the star of one "Lost" episode had some paper to spare.

What kind of whacked out moon dust does Bai Ling have stored away in those hooker boots of hers?


... and where do we get some?

P!nk wouldn't admit to hanging with Bai Ling -- saying she doesn't "name drop." We think it's because Bai's a chicken dancing, bad rhyme-busting, space cadet who will do nothing but damage her street cred.

Bai Ling doesn't need any real beach buddies to have a good time -- the voices in her head keep her more than occupied.

If Hilary Duff knows anything about Lalaine Vergara Paras' meth bust, she ain't talking about it.

Also in NY: Carly Smithson placed blame on Andrew Lloyd Weber for her getting the boot, Johnny Galecki said he'd be game for a "Roseanne" reunion and Bethenny Frankel talked about NY "Housewives" Alex McCord's nude pics.

In L.A.: The incomprehensible Bai Ling couldn't understand simple English, Luke Perry revealed who'd be playing his role in the "90210" spin-off, Lo ate it in her car and Sophie Monk was forced to talk about Ryan Seacrest when she got locked out of her apartment.

Jason Lewis was all about getting his spit all over our camera again -- and our photog couldn't be happier.

Also in NY: Ricki Lake couldn't control her laughter when asked about John Mayer, Helena Christensen got snubbed by an ageist and Dita Von Teese lamented her lost swan.

In LA: Deepak Chopra had some truly hilarious insight into Oprah Winfrey, Djimon Hounsou reacted to the most random compliment ever, Lindsay Lohan actually looked happy and Bai Ling was as spacey as ever.

Bai Ling says she's been vacationing on the moon. We're thinkin' Uranus makes more sense.....

Shoplifting chicken dancer Bai Ling went au naturel while on the Vancouver set of her new movie on Thursday. Holy s**t! Someone actually hired this loon?!

Apparently, the film's hair and makeup budget was somewhere in the $0.00 range.

Oh and the name of the flick is "Dim Sum Funeral." R.I.P.

Bai Ling celebrated pleading guilty to disturbing the peace by drinking a big 'ol glass of wine. Thatta girl!

In her wacked-out mess of a blog, Bai writes, "Theft dismissed! yes! This is it! All the darkness went away, the sunlight really come back to me with a huge smile right now dance in my trailer Yes! Yes! Yes! I will drink a sexy red wine tonight after my filming and celebrate. I am smiling for real!"

She was ordered to pay a fine of several hundred dollars after allegedly stealing $16.22 from an airport convenience store. With all this taken care of, Ling can resume her busy, chicken-dancing schedule.

In her most recent blog, Bai Ling called her alleged pilfering of $16.22 worth of goods from an airport "an innocent mistake." So now she's making sense?? Doubtful.

The chicken-dancer extraordinaire adds that she is "confident that the truth will be told since I never had any intention of taking items without paying for them." Riiiight.

Using words like "infraction" and "misdemeanor charges," the statement lacks such trademark Ling-isms as "Dusts like the stars dancing in a slow motion shines the sunlight."