Bradley Cooper, Zach Galifianakis Bro Down at Kittichai; Renée Zellweger Chills With Robert De Niro at Lucky Strike

By

What do celebrities do when they break up with other celebrities? Hang out with more celebrities. To wit: Bradley Cooper met up with Zach Galifianakis for a Thai dinner at Kittichai, while his recent ex-girlfriend Rene Zellweger hit up Lucky Strike Lanes to relax with Robert De Niro. Also out there was Chris Brown, who broke up a window before eating at Chin Chin. Lots more celebrity sightings straight ahead.

Chin Chin: After his window-smashing debacle at the Good Morning America offices, embattled rapper Chris Brown went out for a late lunch with girlfriend Karreue Tran. [Just Jared]
Gabriel's Bar & Restaurant: Katie Couric enjoyed "a delicious bowl of minestrone." [Page Six/NYP]
Kittichai: The newly single Bradley Cooper met up with his Hangover co-bro Zach Galifianakis to grab some Thai. The two recently spent a bit of time in Thailand to shoot that movie's sequel. [Feast/NBC New York]
Lucky Strike Lanes and Lounge: On a related note, Rene Zellweger wore Nikes and running clothes to a birthday party for Elliot De Niro, whose father, Robert, was Cooper's co-star in Limitless. Yes, theres a quiz at the end. [Gatecrasher/NYDN]
Old Homestead Steakhouse: Randy Jackson and his party ate porterhouse steaks, filet mignon, and shrimp while trying to ignore the impromptu American Idol auditions being held around them. [Gatecrasher/NYDN]
Osteria Morini: Bono threw his two-named wife, Ali Hewson, a birthday party in Soho. The Edge, R.E.M.'s Michael Stipe, and Helena Christensen helped round out the table. [Grub Street]
Pacha: Director Oliver Stone partied on St. Patrick's Day with his son, Sean, and actress Rachel Heller. [Page Six/NYP]
STK: Kate Gosselin celebrated her birthday by wearing an "itty-bitty black dress" to the meatpacking district. [Hollywood Life]