Jennifer Lawrence Celebrates Birthday with Friends (and Kris Jenner!) After Splitting from Chris Martin

Jennifer Lawrence held a belated celebration for her 25th birthday with friends and family at a private home in Hollywood on Friday.

A source tells PEOPLE that she and Coldplay frontman Chris Martin have split. But the Hunger Games star had a fun night with a surprise party guest – reality TV matriarch, Kris Jenner!

Gwyneth Paltrow: I Did Not Know That My Divorce Post Would Be Titled 'Conscious Uncoupling'

Gwyneth Paltrow Told Kids After Chris Martin Split: 'You Know What's Real and How Much We Love You'

Gwyneth Paltrow Celebrates Goop at Net-A-Porter Hamptons Bash with Ex Chris Martin and Kids

Gwyneth Paltrow and Chris Martin continued their post-split friendship on Thursday as the Coldplay frontman joined his ex-wife in the Hamptons to celebrate her lifestyle website,

Gwyneth Paltrow and Brad Falchuk Still Going Strong! Sweet Couple Get Cozy in Rome: PHOTOS

Gwyneth Paltrow and Brad Falchuk are still a team – the couple were spotted navigating the streets of Rome together on Thursday.

They were spotted driving from the airport to a hotel, and Falchuck “sweetly helped [Paltrow] drive through town,” a source tells PEOPLE.

“They were serene and pleased in each other’s company, happy,” the source said.

Paltrow was spotted at the Valentino show Thursday night.

Coldplay, Beyoncé, Ed Sheeran Among Global Citizen Festival Headliners

The lineup for the 2015 Global Citizen Festival was announced Thursday – and it’s a doozy!

What Break-up? Jennifer Lawrence and Chris Martin Spend Fourth of July Weekend Together in NYC

What split rumors?

Jennifer Lawrence and Chris Martin put reports that they had broken up to rest as they spending the Fourth of July weekend together in New York City, a source tells PEOPLE.

Lawrence, 24, and Martin, 38, were spotted walking near Central Park in Manhattan on Friday, July 3.

“They were walking arm-in-arm, in a hurry it seemed,” a source says. “It looked like they were dressed for date night.”

A Tweeter also saw the couple on Saturday, July 4, riding bikes in Battery Park.

Angelina Jolie and Brad Pitt Hang with Chris Martin in London – After Their Kids Catch Taylor Swift's Concert!

Gwyneth Paltrow Shares Sweet Photo of Chris Martin and Apple: 'Nothing Like Father/Daughter Bond'

Chris Martin and Jennifer Lawrence Step Out Together for U2's Hollywood Bash

Chris Martin and Jennifer Lawrence were amongst a starry invite list at U2’s Los Angeles bash over the weekend.

U2

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