However, their friendship isn’t a new one.

The pair have actually known each other for quite some time.

“This whole thing started out with one studio session.

Kourtney Kardashian and Megan Fox at the VMAs

We’ve been great friends for a decade.

So this was just like, ‘Hey, let’s just do a random day of work.’

The energy was so immense that came from it,” Kelly confessed (viaKerrang).

Machine Gun Kelly posing with Travis Barker

So of course the two women have struck up a friendship themselves.

“Megan and Kourtney have grown closer as friends over the last two months.

They act like best friends when they’re together,” a source told the outlet.

“Kourtney has been spending more time with Megan than some of her sisters.

“Travis has a recording studio in his house so him and MGK will jam out there a lot.

Travis introduced Kourt to Megan through MGK,” the insider said.