Singer Chris Martin will reportedly join actress Jennifer Lawrence here at an event amid split rumours of the couple.

The Coldplay frontman, who reportedly separated from Lawrence late last month, will accompany her to the world premiere of the film `The Hunger Games: Mockingjay Part 1` Monday night, reports dailymail.co.uk.

However, the 37-year-old singer will not join Lawrence on the red carpet.

According to a source, he will do his `usual, fly-under-the-radar thing that he used to do with (his ex-wife) Gwyneth Paltrow`.

The actress was seen arriving at his Malibu home Oct 27 - just hours after news broke that the couple had split - for what was described as a 'heart to heart' with Martin.

She returned three nights later, on Oct 30, and is believed to have been with Martin since the weekend.

An insider said: `They've mostly been holed up at Chris's house, and there were rumours 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."