¡Feliz cumpleaños! J-Lo: My Favorite Puerto Rican Turns 40!

As usual giving ya'll that hot latin fiyah! she's so fly...... even her boo looks nice, so used to seeing him look frailish and stuff, go Marc!

The crew from the movie she's working on bought her a cake.....



Nice!

"If Jennifer Lopez had been hoping to let her 40th birthday slip by unnoticed, she was out of luck.

The actress, who spent the day working on the set of latest film The Back-Up Plan, was last night treated to a glamorous surprise birthday party.

Organised by husband Marc Anthony, details of the party at Hotel Griffou in Greenwich Village, New York, were kept under wraps - but there was no mistaking the birthday girl as she made her arrival."

Read more at the source:

Video of her receiving gifts from her "Back Up Plan" pals.....