Kim Kardashian Big Birthday in the Big Apple ... North Turns 11 in NYC!!!
Kim Kardashian knows how to throw a birthday party ... treating her daughter North and her friends to a day out in New York City -- with LaLa Anthony by her side!
The reality television star hit the NYC streets Saturday with the whole birthday crew in tow ... clad in a sporty mom get-up -- an athletic look ready to take on the concrete jungle. LaLa's right there too, rocking a crop top and tossing an arm around North's shoulder.
Speaking of North ... she turned 11 on Saturday and is sporting a commemorative t-shirt to mark the occasion with a pair of bright pink "I Heart NY" pajama pants -- a matching outfit it looks like all the birthday attendees have on.