JOHN LEGEND HAS A STAR STUDDED BIRTHDAY BASH!

John Legend gave friends the "Green Light" to party Monday night, as a star-studded crew flocked to the Meatpacking District for his 31st-birthday bash.
With model-girlfriend Christine Teigen on his arm, the crooner kicked off the evening at Abe & Arthur's, where he and pals Estelle, Ludacris, Lindsay Lohan, Kid Cudi, Zach Braff and Ryan Seacrest enjoyed dinner. He then led the group next door to SL, where a spy says Estelle "blew it up" on the dance floor alongside Legend.

But the evening didn't just focus on the birthday boy. "John heard that a girl was also celebrating her birthday at the club," says a reveler. "So he went over to her table and helped her blow out candles, then took photos with her."