Jennifer Lopez graces the September cover of InStyle and confesses to being a Luddite who sort of reminds us of our grandmother.

“I am terrible with computers. I never go near one; I don’t like them. I barely know how to log on, so I’m never online.”

And her one and only idol?
“Barbra Streisand is my absolute idol. I love what she does. She’s a singer an actress, she went into directing—she does it all. I sang Streisand’s ‘My Man’ to Marc at his 40th birthday party. It was a perfect song to sing to him. I even made him a recording so he could play it in the car.”

InStyle celebrates its 15th anniversary with Jennifer Lopez on its cover.

Word to the wise: If you ever receive an invitation to Jennifer Lopez’s birthday party it would behoove you to show up on time. Jennifer does not tolerate tardiness.

Or so says spies who attended the second part of her 40th birthday party at the Edison Ballroom in New York City on Saturday night. According to The New York Daily News, Lopez “threw a fit” when guests were late to dinner. Lopez was “fuming…visibly upset and embarrassed” when the dinner started and some of her guests were tardy.

Much to her chagrin, invitees dribbled in until midnight — which the source called the “the height of rudeness.”

Jennifer Lopez rang in the big 4-0 at Hotel Griffou in New York City Thursday night. But more importantly — what an awkward shot between her and hubby Marc Anthony?

Penny for their thoughts?

Jennifer Lopez wants to overachieve her way through baby-making the same way she has film, music and fashion.

She wants MORE!

“I would love to have more kids,” the actress says. “I don’t know if we will. I don’t know if that’s in the cards for us – but we’ll see…[After motherhood] You just mature so quickly in such a deep way and you think life is short and you have to just go for things. You can’t be afraid to try or do you best … just do it and that’s the example I want to set for my children as well.”