Jennifer Lopez is throwing husband Marc Anthony a lavish 40th birthday party at NYC’s Bowery Hotel on September 14, but according to one of her pals, she’s doing it as much for herself as she is for her husband. “Jennifer wanted a reason to host a party and Marc’s birthday gave her the perfect opportunity,” her pal explains. “She invited all of her celebrity friends and planned every detail — from the food to the decor — sparing no expense.” “She wants to give him a night he’ll always remember,” a pal says.

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