In this edition of Gawker Stalker: Maggie Gyllenhaal and Adrien Grenier meet on the street (thus allowing us to violate our anti-Grenier stance just this once), 50 Cent rockin a bulletproof vest, Sienna Miller, Stevie Wonder humidifier shopping, Johnny Knoxville, Diane Sawyer, Mike Nichols, Nathan Lane, Matthew Broderick, Sarah Jessica Parker, Mandy Moore and Zach Braff, Jessica Alba, Kathy Hilton, Brooke Shields, Lorne Michaels, Peter Dinklage, Jason Schwartzman, Puff Daddy, Paul McCartney, Fred Armisen and Martha Plimpton, Cynthia Nixon, Michael Pitt, Martha Stewart, Kyra Sedgewick, James Woods, Kelly Clarkson, Nick Stahl, Minnie Driver, Michelle Trachtenberg, Bobby Flay and Stephanie March, Bobby Cannavale, Tab Hunter, Sam Shepard, and Brian Austin Green.

I saw Maggie Gyllenhaal and Adrian Grenier on University place yesterday (10/17). They ran into each other by accident, and gleefully hugged and chatted. I couldn t figure out if they actually knew each other or if this is just something celebrities do when they see each other on the street. Even though he was alone Adrian said, WE were just talking about you this afternoon, and I wondered if he s one of those weird people who says we instead of I. Anyway, she has great skin and looked completely beautiful, and he was smaller than I expected with overly baggy clothes and big Bob Dylan hair.

Last Friday (10/14) while leaving work in the pouring rain, I saw the Godfather of Gangsta, 50 Cent, underneath an umbrella with absolutely no entourage in sight. He was standing a few feet back from the actual corner and looking every which way for something. At first I thought it strange for him to be there without any protection, but he was rather stealthy in a large Yankees cap and full G-Unit getup. Absolutely wearing a Kevlar vest underneath his t-shirt and jacket - you could see the bulge front and back.

Was impatiently holding the elevator door and giving my best "if you do not hurry up, I will cut you, bitch" face to some cute blonde girl on her cell in the lobby of my parents' building when I realized that it was Sienna Miller. She was wearing an oversized, gold-studded newsboy cap. I guess she's not so pleased with her short new haircut, but I do not believe that the haircut itself could have been worse than this hat. She scuttled onto the elevator and apologized and then I felt badly because I guess she's had a rough summer or whatever. I'm pretty sure she was doing research for Factory Girl because Brigid Berlin lives in my parents' building and I truly cannot think of any other reason that Sienna Miller would ever find herself in a co-op in Murray Hill. Seriously though, her hat was retarded.

I just saw Stevie Wonder at the Bed, Bath & Beyond on the UWS. He was testing out different humidifiers. He would stick his head in front of each one, and kept it up for a good 10 minutes. AWESOME.

Saw Johnny Knoxville on Thompson St. between Spring and Prince around 7:30 p.m. last night- Monday, Oct 17th . He was wearing something similar to shapeless Capri pants, sneakers and a black hoodie, sunglasses and sporting a goatee. Walking with a cute girl with brown hair that didn t look familiar.

Last night we were fortunate enough to be seated next to a booth of powerhouse New Yorkers — Diane Sawyer, Mike Nichols, Nathan Lane, Matthew Broderick and Sarah Jessica Parker. They were dining at Caf Gray.

Dude, was that Mandy Moore and Zach Braff riding bikes along the East River on Saturday? I was jogging downtown somewhere between the Williamsburg and Manhattan bridges when I could have sworn I saw him riding uptown, with a cute-as-a-button Mandy pedaling hard to keep up.

10-18, Oscar Blandi Salon, stunning, attitude-less Jessica Alba, high-maintenance demanding Kathy Hilton. Brooke Shields at Roc Center Dean and Deluca, buying lots of pieces of cake and looking great. Intermission at The Odd Couple, Lorne Michaels.

I was just walkin' down 18th street and who do I see striding along cursing into a cellphone? Peter Dinklage, the silver screen's go-to little person. He was wearing hemmed AG Jeans and a black shirt. Oh, and I would hate to be on the other end of that conversation...a mouth of a sailor that one!

Spotted Jason Schwartzman jewin' around the LES yesterday. He was grey flannel suited, sneakered, and bearded. So hot, slinking out of the Rivington Hotel and cruisin' over to Teany (shudder.)

Went out to Crobar Saturday, saw Puff Daddy on stage around 4 am looking like he swallowed a few green butterflies, cheering on the man of the hour Carl Cox. Rumor has it his mom was with him too. Weird. My mom wont go out to clubs with me.

Saw Paul McCartney on his cell phone outside Brooklyn Diner on 57th around 12.30 today. Came in and had lunch by himself and was eventually joined by an agent type!

New couple? Fred Armisen of SNL and Martha Plimpton shopping on the UWS Sunday. They came out of Staples and headed in to buy paper towel at Price Wise at 81st and Broadway.

Saw Cynthia Nixon on the corner of 76th and Amsterdam on 10/17 with her two kids and a woman who wasn't her scary looking partner (or are they over?). I'm guessing the woman was the kids' nanny. Nearly missed spotting CN since she was sporting blond hair and looked really ordinary mom-ish, but recognized her funny mouth and teeth.

Saw Michael Pitt around 11 AM Sunday morning on Montague St. He was running... and it was hurried running and not running-for-exercise running. Where in Brooklyn Heights could anyone be in a hurry to go? Who knows. But he looked h-h-h-ot.

I was at an Everyday Food event at the Martha Stewart offices in 601 West 26th last week. Cheap wine and cold hors d ourves besides, a sighting of the Queen herself, Martha Stewart, made it all worthwhile. She looked incredible for a sixty-three year old woman — wearing a brown jacket and knee length skirt. Matching platform pumps were a bit much, though. She has lost a ton of weight and her skin looked incredible — not botox-erific, but smooth and natural. She was extremely cordial and friendly with us average folk, but it seemed a bit forced for the camera crew and photogs catching her every move.

Kyra Sedgewick hauling ass up Columbus Ave on 10/16 while yakking on cell. Teeny tiny and very radiant.

James Woods in the lobby of the Ritz-Carlton, flirting with an absurdly chesty blonde who looked about 25% his age.

Yesterday 10/17 I brushed shoulders with Kelly Clarkson! She was with 2 friends walking down 39th toward Madison, wearing a cap, cargo pants and sneakers. Girlfriend is short, about 5'2 and her hair is now bleach blonde. Looks exactly like she does on TV and happily seemed like your average girl. Very cute.

Walking down 35th Street between Third and Lexington. I spy a guy walking a funny little white puppy with black fur blotches. I stare at the dog. The guy stares at me. I stare at him. Then I stare at the dog again. Five paces later, it pops into my head that s Nick Stahl. Looking cute but rather unassuming in jeans, jacket, and droopy knapsack. I think the funny little puppy momentarily dismantled my celebrity radar.

Saw Minnie Driver yesterday morning around Rector St. in financial district. She looked pretty, walking quickly looking at her cellphone.

Michelle Trachtenberg walking down 56th between 9th and 10th. She was walking from the parking garage toward 9th avenue. She was so tall and has brown hair now. It was how she dressed that made me notice her, like a stylist put her together, but other than that, she was very normal looking, like every other girl her age.

Saw Bobby Flay and his wife Stephanie March at JG Mellon's last night on the UES. I wouldn't have recognized them but my Food Network and crime drama obsessed friends clapped eyes on the couple and started doing a grilling dance. My guy friends thought she was the most beautiful woman ever— I've never seen them drool so hard. She was also wearing great silver stilettos, which I guess is what beautiful people wear to eat burgers on Monday nights. Bobby looked nappy in a blue sportcoat, and is more handsome than he is in pictures I've seen. Yeah, he ate a burger.

I had a sighting on the 42nd Street subway platform on Friday, October 14, at about 10:30 a.m. While getting off the uptown E train to transfer to the A, saw a tall, dark and handsome Bobby Cannavale, who apparently had just gotten off the same train and was heading upstairs. He looked good, exactly like he does on TV. He kind of smiled (smirked?) at me. Me, being the typical New Yorker, kept my bleary-eyed, I'm-still-half-asleep straight face. I was wondering why he was even in the subway in the first place.

Had the pleasure of dining near the still-very-handsome Tab Hunter at the Isle of Capri (61st & 3rd) on Sunday night. He looked much better than he did on Larry King a few nights before. Was with a charming man in his 50s (his longtime BF?) Overheard him saying that he used to come to the Isle of Capri with Sophia Loren.

Mon. 10/17: Spotted playwright Sam Shepherd strolling down Broadway between 9th and 10th this morning. Sporting a well-worn brown leather bomber jacket and smoking a cigarette, he was accompanied by an older, portly man, who seemed to be a lawyer or agent-type. Very excited, as this is my first-ever Gawker-Stalker submission. Equally deflated at the same time, as Jessica Lange was nowhere to be seen, and I realize I m forced to nominate myself for sending in the lamest submission this month (Sigh.)

I was at some random bar (I don't remember the name) on the Chinatown side of Bowery on Sat 10/15 around 4 pm and Brian Austin Green and a ladyfriend came in and sat right next to us. They then proceeded to loudly and graphically make out for an hour over diet cokes and food. We're talking mouths-an-inch-apart-but-stil-shoving-tounges-down-eathother's-throats grossness. He has many more tattoos than I would have guessed, but still looked fine. I wanted to shout out "Donna Martin graduates" when I left, but restrained myself...