40 & FABULOUS!
updated 08/10/2009 AT 01:00 AM EDT
•originally published 08/10/2009 AT 01:00 AM EDT
New York City, July 25
After a month of planning, husband Marc Anthony pulled off the ultimate surprise party, escorting a shocked Jennifer Lopez to the Edison Ballroom for a night he called "an Evening for Lola," a nod to his nickname for her.
The couple danced to salsa, R&B and '80s tunes into the wee hours of the morning.
FRIENDS & FAMILY AFFAIR
Lopez's sisters (above, from left) Lynda and Leslie with mom Guadalupe were joined by the singer's pals (below, from left) Alicia Keys, Ricky Martin and producer Swizz Beatz.