Of Course J.Lo Threw A Diva Fit On Her Birthday

[Although the actress' pals showed up at the Edison Ballroom for "An Evening With Lola" (hubby Marc Anthony's nickname for Lopez) in her honor, La Lopez - who entered the shindig to Sarah Vaughan's "Whatever Lola Wants" - stayed true to her diva status and "threw a fit" when some of her guests were late to the exclusive dinner.

"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," said one partygoer, who added, "Jennifer was visibly upset and embarrassed.

And although most of her good pals attended the fete, the mole claims that Lopez was upset that best friends Tom Cruise and Katie Holmes didn't attend - they were busy hanging out with David and Victoria Beckham in L.A.

As for Lopez herself, says our first insider, "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."]

I think the setup of the evening is just the tip of the iceberg of how selfish Jennifer can be. Parties are for dropping in. Only a total control freak would expect a guest to show up on time and stay the entire evening. Who arrives "fashionably late" to a fete? I know I do! An 8 o'clock invite means 9 o'clock to me - and I also don't feel obligated to be the last one standing. This is one of the many, many reasons why "Lola" and I are not friends. Oh, and thanks for the tipoff on the nickname. I'm happy to open the floodgates for teasing on that topic!

[Photo Credit: Jennifer Lopez and Marc Anothy. Gosh, the sure do look sexy from the side. Click here to see Lola in tears in her birthday getup, Maybe she's crying because she realized Megan Fox already wore it - and it looked better on her.]