While you ate lunch, celebrities roamed the Earth. Today in #stalker sightings: Jude Law and Sienna Miller (twice!) and John Slattery.

Aug. 25 @ 7:45am [Submit your own Gawker Stalker sightings to stalker@gawker.com] I stood in line at Starbucks Astor Place behind Anna Wintour and her husband J. Shelby Bryant. They both ordered cappuccinos.

Aug. 17 @ 5pm Mischa Barton's whining about her computer at the Apple store. Yelled at the nice Mac Genius for something not her fault. I think her mom was with her. [Submit your own Gawker Stalker sightings to stalker@gawker.com]

Aug. 13 @ 1pm I saw Andre Leon Talley eating lunch at Benoit. He was with some young women who looked like they could have been summer interns having a farewell lunch. [Submit your own Gawker Stalker sightings to stalker@gawker.com]

[Submit your own Gawker Stalker sightings to stalker@gawker.com] July 30 @ 8pm Saw Sean Lennon walking through the John Lennon exhibit at the Rock and Roll Hall of Fame Annex. He was with whatever pretty girl he's dating now.

[Submit your own Gawker Stalker sightings to stalker@gawker.com] July 27 @ 1pm "Look at that idiot wearing his helmet on the back of his head," my friend said. Someone yelled "HOLY SHIT THAT'S 50 CENT!!" He smiled and waved.

June 18 @ 11 am He had a diamond stud in his ear and was smoking a cigarette

June 15 @ 1 pm Saw Paul Dano at the Trader Joe's in Brooklyn. I followed him into the snack aisle and then he left without buying anything. [Submit your own Gawker Stalker sightings to stalker@gawker.com]

[Submit your own Gawker Stalker sightings to stalker@gawker.com] June 15 @ 11 am I was leaving the Flatiron Building and I spotted Clay Aiken. He was probably heading up to the Macmillan Publishing offices

[Submit your own Gawker Stalker sightings to stalker@gawker.com] June 5 @ 9am Kelly Kapowski spotted at the Today show this morning. She was watching the Dave Matthews Band concert with some guy. (Not Zach Morris, sadly.)

June 2 @ 3pm Just had a VPOTUS sighting… Joe Biden on Madison Ave walking out of Barneys, now he is somewhere on 61st. [Submit your own Gawker Stalker sightings to stalker@gawker.com]

[Submit your own Gawker Stalker sightings to stalker@gawker.com] June 1 @ 12pm I saw Matthew Broderick buying nicotine patches in Duane Reade!

[Submit your own Gawker Stalker sightings to stalker@gawker.com] May 21 @ 9pm Saw Tracy Morgan sitting outside of a bar with his yellow Lamborghini parked right in front. Pretty sure it was a no parking area. Just as angry of a person as you'd imagine.

May 19 @ 12pm I just saw James Van der Beek at Kinkos. He was faxing some documents at the fax machine next to mine. Plain white tee shirt, signature hair — he looked pretty good.

May 6th @ 8am I saw Robert Downey Jr. walking his cute little Jack Russell. [Submit your own Gawker Stalker sightings to stalker@gawker.com]

[Submit your own Gawker Stalker sightings to stalker@gawker.com] May 1 @ 9am Spotted a dripping wet Judah Friedlander from 30 Rock walking along 50th St. near Broadway this morning.

[Submit your own Gawker Stalker sightings to stalker@gawker.com] April 28 @ 10am Saw Casey Greenfield's alleged baby daddy J Toobin carrying a very lawyerish-looking briefcase/computer case. He is quite petite.

[Submit your own Gawker Stalker sightings to stalker@gawker.com] April 27 @ 7pm Danny D spotted dining at Omai in Chelsea with 3 others.

[Submit your own Gawker Stalker sightings to stalker@gawker.com] April 2 @ 2pm Bono is eating at the outdoor cafe at Isabella's right now. Hair redder than I thought and he's shorter than I thought.

[Submit your own Gawker Stalker sightings to stalker@gawker.com] Mar. 25 @ 9am Ran into Penn Badgley talking on the phone. He said 'Baby, please wake up!' while smiling!