J.Lo Throws Divatude At Bday Party!

At Jennifer Lopez's surprise 40th birthday party at the Edison Ballroom in NYC on Saturday, the actress threw a fit over the lack of timeliness of her guests.

"Jennifer's party was very intimate, and there were a noticeable amount of empty seats when the dinner started. Jennifer was really irritated. She was fuming because people were late, and complained about it really loudly to Marc," says an attendee. "Jennifer was visibly upset and embarrassed."

Those who found themselves on the diva's shiz list included Alicia Keys, boyfriend Swiss Beatz and the few who didn't attend, Tom Cruise and Katie Holmes.

Other guests included the oddly combination of Ricky Martin, Liza Minnelli, Leah Remini, L.A. Reid and Gayle King.

"After Jennifer got over her initial irritation, she let go and looked like she was having the time of her life, drinking champagne and partying until 4 a.m. It was definitely a good way to kick-start her 40s," continues the source.

You're never too old to for divalicious behavior!

Enjoy it, honey!!!

[Image via WENN.]