Jennifer Lopez turned 40 on Friday, an occasion she marked with a dinner party at Greenwich Village's Hotel Griffou. Not that the festivities were contained to that event alone – given the blowout bash thrown Saturday night by husband Marc Anthony at midtown Manhattan's Edison Ballroom.

The party, dubbed "An Evening For Lola" – a nod to Anthony's nickname for his wife – was attended by sister Lynda, mom Guadelupe, manager Benny Medina, as well as BFF Leah Remini. Other guests included Liza Minnelli, Gayle King, Australian actor Alex O'Loughlin, New York Mets player Carlos Beltran and music mogul LA Reid.

Lopez, who arrived with Anthony in a Bentley, donned a Grecian-inspired gown. Before entering the soiree she met with fans standing behind barricades across the street, which had been closed to traffic.

"Jen was in an amazing mood and was just so excited about seeing all the fans [and] the marquee outside the Edison that said, 'An Evening For Lola.' She was really energized," says a source, adding: "Jennifer was the belle of the ball. She was glowing, and just radiating happiness. She really had a great time."

When it came to the party, "It was a glamorous setting, with white flowers around. Very classy. Everyone had a really good time, and it was a nice mix of her family, business associates and her friends."

As for Lopez and her husband, the source says, "They were affectionate with each other and obviously loving the night. Marc's arm was around Jennifer a lot, they'd give each other pecks on the face every now and then. She was clearly pleased with how the night went."