Chris Martin and Jennifer Lawrence to reunite at <em>Hunger Games</em> premiere

Los Angeles - Chris Martin is to join Jennifer Lawrence at the world premiere of The Hunger Games: Mockingjay, Part 1.

The 37-year-old star was reported to have split with the Oscar-winning actress last month, but it now appears their romance may be back on, with the Coldplay singer set to attend the event in London - although he will not appear on the red carpet.

A source close to the situation says Chris will do his "usual, fly-under-the-radar thing that he used to do with Gwyneth Paltrow", his now estranged wife.

Jennifer, 24, was spotted at the Malibu home of the singer for a heart-to-heart meeting last week and it's believed they've been together since the weekend.

Here is the trailer for The Hunger Games: Mockingjay, Part 1:



The source told MailOnline: "They've mostly been holed up at Chris' house, and there were rumors that they were at one of Jen's regular haunts, Chateau Marmont, earlier in the week.

"Jennifer hasn't been talking about it - she's been uncharacteristically quiet about the whole thing.

"Chris is meant to be going with her to London to the Hunger Games world premiere. But he won't make a public appearance."

The insider said Jennifer was "adamant it was all over" last week, adding: "But she tends to move on fast in these matters.

"Her personal life seems to be in flux, but she's not letting all that is happening affect her promotional duties for Mockingjay."

This comes following a report earlier this week that the pair are still very much still a couple after Jennifer was spotted driving to Chris' Malibu mansion this past Saturday.

An insider told PEOPLE magazine: "They're very much together, he's very much into her and they're still seeing each other."