Ed Westwick and Jessica Szohr
Rocke/Ertischek/Splash News Online
06/28/2009 AT 02:00 PM EDT
Saturday night Ed Westwick
gathered a bunch of pals – including Gossip Girl
costar Blake Lively and girlfriend Jessica Szhor, who flew in just to surprise him – for a 22nd birthday bash at New York's Lucky Strike Lanes & Lounge.
"Ed and Jessica were close and cuddly all night," says a guest. "Everyone was friendly, having a lot of fun and were in good spirits."
Birthday cake consisted of CRUMBS cupcakes with "HB ED" on top of each: red velvet, cookie dough, M&Ms, peanut butter, sprinkles, cookies & cream, with a single candle in the center cupcake for the birthday boy.
"Everyone sang 'Happy Birthday,' " says the source. "Ed thanked everyone for coming and kissed Jessica – they were adorable." For recreation, "Everyone bowled casually throughout the night- no one really finished a game."
The stylish party rocked out to Kings of Leon and Notorious B.I.G. among other tunes and sipped on cucumber martinis or Amstel Light and Bud Light. Blake and Jessica, however, stuck to water.
For a hot photo gallery of the birthday boy, click here